256440240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 480

約数和(自身を含む): 1082180736

約数和(自身を除く): 825740496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 41, 42, 45, 48, 51, 56, 60, 63, 68, 70, 72, 73, 80, 82, 84, 85, 90, 102, 105, 112, 119, 120, 123, 126, 136, 140, 144, 146, 153, 164, 168, 170, 180, 204, 205, 210, 219, 238, 240, 246, 252, 255, 272, 280, 287, 292, 306, 315, 328, 336, 340, 357, 360, 365, 369, 408, 410, 420, 438, 476, 492, 504, 510, 511, 560, 574, 584, 595, 612, 615, 630, 656, 657, 680, 697, 714, 720, 730, 738, 765, 816, 820, 840, 861, 876, 952, 984, 1008, 1020, 1022, 1071, 1095, 1148, 1168, 1190, 1224, 1230, 1241, 1260, 1314, 1360, 1394, 1428, 1435, 1460, 1476, 1530, 1533, 1640, 1680, 1722, 1752, 1785, 1845, 1904, 1968, 2040, 2044, 2091, 2142, 2190, 2296, 2380, 2448, 2460, 2482, 2520, 2555, 2583, 2628, 2788, 2856, 2870, 2920, 2952, 2993, 3060, 3066, 3280, 3285, 3444, 3485, 3504, 3570, 3690, 3723, 4080, 4088, 4182, 4284, 4305, 4380, 4592, 4599, 4760, 4879, 4920, 4964, 5040, 5110, 5166, 5256, 5355, 5576, 5712, 5740, 5840, 5904, 5986, 6120, 6132, 6205, 6273, 6570, 6888, 6970, 7140, 7380, 7446, 7665, 8176, 8364, 8568, 8610, 8687, 8760, 8979, 9198, 9520, 9758, 9840, 9928, 10220, 10332, 10455, 10512, 10710, 11152, 11169, 11480, 11972, 12240, 12264, 12410, 12546, 12915, 13140, 13776, 13940, 14280, 14637, 14760, 14892, 14965, 15330, 16728, 17136, 17220, 17374, 17520, 17958, 18396, 18615, 19516, 19856, 20440, 20664, 20910, 20951, 21420, 22338, 22960, 22995, 23944, 24395, 24528, 24820, 25092, 25830, 26061, 26280, 26937, 27880, 28560, 29274, 29520, 29784, 29930, 30660, 31365, 33456, 34440, 34748, 35916, 36792, 37230, 39032, 40880, 41328, 41820, 41902, 42840, 43435, 43911, 44676, 44895, 45990, 47888, 48790, 49640, 50184, 50881, 51660, 52122, 52560, 53874, 55760, 55845, 58548, 59568, 59860, 61320, 62730, 62853, 68880, 69496, 71832, 73185, 73584, 74460, 78064, 78183, 83640, 83804, 85680, 86870, 87822, 89352, 89790, 91980, 97580, 99280, 100368, 101762, 103320, 104244, 104755, 107748, 111690, 117096, 119720, 122640, 125460, 125706, 130305, 134685, 138992, 143664, 146370, 148920, 152643, 156366, 167280, 167608, 173740, 175644, 178704, 179580, 183960, 188559, 195160, 203524, 206640, 208488, 209510, 215496, 219555, 223380, 234192, 239440, 250920, 251412, 254405, 260610, 269370, 292740, 297840, 305286, 312732, 314265, 335216, 347480, 351288, 356167, 359160, 367920, 377118, 390320, 390915, 407048, 416976, 419020, 430992, 439110, 446760, 457929, 501840, 502824, 508810, 521220, 538740, 585480, 610572, 625464, 628530, 694960, 702576, 712334, 718320, 754236, 763215, 781830, 814096, 838040, 878220, 893520, 915858, 942795, 1005648, 1017620, 1042440, 1068501, 1077480, 1170960, 1221144, 1250928, 1257060, 1424668, 1508472, 1526430, 1563660, 1676080, 1756440, 1780835, 1831716, 1885590, 2035240, 2084880, 2137002, 2154960, 2289645, 2442288, 2514120, 2849336, 3016944, 3052860, 3127320, 3205503, 3512880, 3561670, 3663432, 3771180, 4070480, 4274004, 4579290, 5028240, 5342505, 5698672, 6105720, 6254640, 6411006, 7123340, 7326864, 7542360, 8548008, 9158580, 10685010, 12211440, 12822012, 14246680, 15084720, 16027515, 17096016, 18317160, 21370020, 25644024, 28493360, 32055030, 36634320, 42740040, 51288048, 64110060, 85480080, 128220120, 256440240]

約数ペア:

[(1, 256440240), (2, 128220120), (3, 85480080), (4, 64110060), (5, 51288048), (6, 42740040), (7, 36634320), (8, 32055030), (9, 28493360), (10, 25644024), (12, 21370020), (14, 18317160), (15, 17096016), (16, 16027515), (17, 15084720), (18, 14246680), (20, 12822012), (21, 12211440), (24, 10685010), (28, 9158580), (30, 8548008), (34, 7542360), (35, 7326864), (36, 7123340), (40, 6411006), (41, 6254640), (42, 6105720), (45, 5698672), (48, 5342505), (51, 5028240), (56, 4579290), (60, 4274004), (63, 4070480), (68, 3771180), (70, 3663432), (72, 3561670), (73, 3512880), (80, 3205503), (82, 3127320), (84, 3052860), (85, 3016944), (90, 2849336), (102, 2514120), (105, 2442288), (112, 2289645), (119, 2154960), (120, 2137002), (123, 2084880), (126, 2035240), (136, 1885590), (140, 1831716), (144, 1780835), (146, 1756440), (153, 1676080), (164, 1563660), (168, 1526430), (170, 1508472), (180, 1424668), (204, 1257060), (205, 1250928), (210, 1221144), (219, 1170960), (238, 1077480), (240, 1068501), (246, 1042440), (252, 1017620), (255, 1005648), (272, 942795), (280, 915858), (287, 893520), (292, 878220), (306, 838040), (315, 814096), (328, 781830), (336, 763215), (340, 754236), (357, 718320), (360, 712334), (365, 702576), (369, 694960), (408, 628530), (410, 625464), (420, 610572), (438, 585480), (476, 538740), (492, 521220), (504, 508810), (510, 502824), (511, 501840), (560, 457929), (574, 446760), (584, 439110), (595, 430992), (612, 419020), (615, 416976), (630, 407048), (656, 390915), (657, 390320), (680, 377118), (697, 367920), (714, 359160), (720, 356167), (730, 351288), (738, 347480), (765, 335216), (816, 314265), (820, 312732), (840, 305286), (861, 297840), (876, 292740), (952, 269370), (984, 260610), (1008, 254405), (1020, 251412), (1022, 250920), (1071, 239440), (1095, 234192), (1148, 223380), (1168, 219555), (1190, 215496), (1224, 209510), (1230, 208488), (1241, 206640), (1260, 203524), (1314, 195160), (1360, 188559), (1394, 183960), (1428, 179580), (1435, 178704), (1460, 175644), (1476, 173740), (1530, 167608), (1533, 167280), (1640, 156366), (1680, 152643), (1722, 148920), (1752, 146370), (1785, 143664), (1845, 138992), (1904, 134685), (1968, 130305), (2040, 125706), (2044, 125460), (2091, 122640), (2142, 119720), (2190, 117096), (2296, 111690), (2380, 107748), (2448, 104755), (2460, 104244), (2482, 103320), (2520, 101762), (2555, 100368), (2583, 99280), (2628, 97580), (2788, 91980), (2856, 89790), (2870, 89352), (2920, 87822), (2952, 86870), (2993, 85680), (3060, 83804), (3066, 83640), (3280, 78183), (3285, 78064), (3444, 74460), (3485, 73584), (3504, 73185), (3570, 71832), (3690, 69496), (3723, 68880), (4080, 62853), (4088, 62730), (4182, 61320), (4284, 59860), (4305, 59568), (4380, 58548), (4592, 55845), (4599, 55760), (4760, 53874), (4879, 52560), (4920, 52122), (4964, 51660), (5040, 50881), (5110, 50184), (5166, 49640), (5256, 48790), (5355, 47888), (5576, 45990), (5712, 44895), (5740, 44676), (5840, 43911), (5904, 43435), (5986, 42840), (6120, 41902), (6132, 41820), (6205, 41328), (6273, 40880), (6570, 39032), (6888, 37230), (6970, 36792), (7140, 35916), (7380, 34748), (7446, 34440), (7665, 33456), (8176, 31365), (8364, 30660), (8568, 29930), (8610, 29784), (8687, 29520), (8760, 29274), (8979, 28560), (9198, 27880), (9520, 26937), (9758, 26280), (9840, 26061), (9928, 25830), (10220, 25092), (10332, 24820), (10455, 24528), (10512, 24395), (10710, 23944), (11152, 22995), (11169, 22960), (11480, 22338), (11972, 21420), (12240, 20951), (12264, 20910), (12410, 20664), (12546, 20440), (12915, 19856), (13140, 19516), (13776, 18615), (13940, 18396), (14280, 17958), (14637, 17520), (14760, 17374), (14892, 17220), (14965, 17136), (15330, 16728)]