28145880

素因数分解:

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

素因数の和:120

約数の個数: 320

約数和(自身を含む): 116043840

約数和(自身を除く): 87897960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 27, 28, 30, 34, 35, 36, 40, 42, 45, 51, 54, 56, 60, 63, 68, 70, 72, 73, 81, 84, 85, 90, 102, 105, 108, 119, 120, 126, 135, 136, 140, 146, 153, 162, 168, 170, 180, 189, 204, 210, 216, 219, 238, 252, 255, 270, 280, 292, 306, 315, 324, 340, 357, 360, 365, 378, 405, 408, 420, 438, 459, 476, 504, 510, 511, 540, 567, 584, 595, 612, 630, 648, 657, 680, 714, 730, 756, 765, 810, 840, 876, 918, 945, 952, 1020, 1022, 1071, 1080, 1095, 1134, 1190, 1224, 1241, 1260, 1314, 1377, 1428, 1460, 1512, 1530, 1533, 1620, 1752, 1785, 1836, 1890, 1971, 2040, 2044, 2142, 2190, 2268, 2295, 2380, 2482, 2520, 2555, 2628, 2754, 2835, 2856, 2920, 3060, 3066, 3213, 3240, 3285, 3570, 3672, 3723, 3780, 3942, 4088, 4284, 4380, 4536, 4590, 4599, 4760, 4964, 5110, 5256, 5355, 5508, 5670, 5913, 6120, 6132, 6205, 6426, 6570, 6885, 7140, 7446, 7560, 7665, 7884, 8568, 8687, 8760, 9180, 9198, 9639, 9855, 9928, 10220, 10710, 11016, 11169, 11340, 11826, 12264, 12410, 12852, 13140, 13770, 13797, 14280, 14892, 15330, 15768, 16065, 17374, 18360, 18396, 18615, 19278, 19710, 20440, 21420, 22338, 22680, 22995, 23652, 24820, 25704, 26061, 26280, 27540, 27594, 29565, 29784, 30660, 32130, 33507, 34748, 36792, 37230, 38556, 39420, 41391, 42840, 43435, 44676, 45990, 47304, 48195, 49640, 52122, 55080, 55188, 55845, 59130, 61320, 64260, 67014, 68985, 69496, 74460, 77112, 78183, 78840, 82782, 86870, 89352, 91980, 96390, 100521, 104244, 110376, 111690, 118260, 128520, 130305, 134028, 137970, 148920, 156366, 165564, 167535, 173740, 183960, 192780, 201042, 206955, 208488, 223380, 234549, 236520, 260610, 268056, 275940, 312732, 331128, 335070, 347480, 385560, 390915, 402084, 413910, 446760, 469098, 502605, 521220, 551880, 625464, 670140, 703647, 781830, 804168, 827820, 938196, 1005210, 1042440, 1172745, 1340280, 1407294, 1563660, 1655640, 1876392, 2010420, 2345490, 2814588, 3127320, 3518235, 4020840, 4690980, 5629176, 7036470, 9381960, 14072940, 28145880]

約数ペア:

[(1, 28145880), (2, 14072940), (3, 9381960), (4, 7036470), (5, 5629176), (6, 4690980), (7, 4020840), (8, 3518235), (9, 3127320), (10, 2814588), (12, 2345490), (14, 2010420), (15, 1876392), (17, 1655640), (18, 1563660), (20, 1407294), (21, 1340280), (24, 1172745), (27, 1042440), (28, 1005210), (30, 938196), (34, 827820), (35, 804168), (36, 781830), (40, 703647), (42, 670140), (45, 625464), (51, 551880), (54, 521220), (56, 502605), (60, 469098), (63, 446760), (68, 413910), (70, 402084), (72, 390915), (73, 385560), (81, 347480), (84, 335070), (85, 331128), (90, 312732), (102, 275940), (105, 268056), (108, 260610), (119, 236520), (120, 234549), (126, 223380), (135, 208488), (136, 206955), (140, 201042), (146, 192780), (153, 183960), (162, 173740), (168, 167535), (170, 165564), (180, 156366), (189, 148920), (204, 137970), (210, 134028), (216, 130305), (219, 128520), (238, 118260), (252, 111690), (255, 110376), (270, 104244), (280, 100521), (292, 96390), (306, 91980), (315, 89352), (324, 86870), (340, 82782), (357, 78840), (360, 78183), (365, 77112), (378, 74460), (405, 69496), (408, 68985), (420, 67014), (438, 64260), (459, 61320), (476, 59130), (504, 55845), (510, 55188), (511, 55080), (540, 52122), (567, 49640), (584, 48195), (595, 47304), (612, 45990), (630, 44676), (648, 43435), (657, 42840), (680, 41391), (714, 39420), (730, 38556), (756, 37230), (765, 36792), (810, 34748), (840, 33507), (876, 32130), (918, 30660), (945, 29784), (952, 29565), (1020, 27594), (1022, 27540), (1071, 26280), (1080, 26061), (1095, 25704), (1134, 24820), (1190, 23652), (1224, 22995), (1241, 22680), (1260, 22338), (1314, 21420), (1377, 20440), (1428, 19710), (1460, 19278), (1512, 18615), (1530, 18396), (1533, 18360), (1620, 17374), (1752, 16065), (1785, 15768), (1836, 15330), (1890, 14892), (1971, 14280), (2040, 13797), (2044, 13770), (2142, 13140), (2190, 12852), (2268, 12410), (2295, 12264), (2380, 11826), (2482, 11340), (2520, 11169), (2555, 11016), (2628, 10710), (2754, 10220), (2835, 9928), (2856, 9855), (2920, 9639), (3060, 9198), (3066, 9180), (3213, 8760), (3240, 8687), (3285, 8568), (3570, 7884), (3672, 7665), (3723, 7560), (3780, 7446), (3942, 7140), (4088, 6885), (4284, 6570), (4380, 6426), (4536, 6205), (4590, 6132), (4599, 6120), (4760, 5913), (4964, 5670), (5110, 5508), (5256, 5355)]