256740120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1$

素因数の和:515

約数の個数: 384

約数和(自身を含む): 1089728640

約数和(自身を除く): 832988520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 24, 26, 28, 30, 34, 35, 36, 39, 40, 42, 45, 51, 52, 56, 60, 63, 65, 68, 70, 72, 78, 84, 85, 90, 91, 102, 104, 105, 117, 119, 120, 126, 130, 136, 140, 153, 156, 168, 170, 180, 182, 195, 204, 210, 221, 234, 238, 252, 255, 260, 273, 280, 306, 312, 315, 340, 357, 360, 364, 390, 408, 420, 442, 455, 461, 468, 476, 504, 510, 520, 546, 585, 595, 612, 630, 663, 680, 714, 728, 765, 780, 819, 840, 884, 910, 922, 936, 952, 1020, 1071, 1092, 1105, 1170, 1190, 1224, 1260, 1326, 1365, 1383, 1428, 1530, 1547, 1560, 1638, 1768, 1785, 1820, 1844, 1989, 2040, 2142, 2184, 2210, 2305, 2340, 2380, 2520, 2652, 2730, 2766, 2856, 3060, 3094, 3227, 3276, 3315, 3570, 3640, 3688, 3978, 4095, 4149, 4284, 4420, 4610, 4641, 4680, 4760, 5304, 5355, 5460, 5532, 5993, 6120, 6188, 6454, 6552, 6630, 6915, 7140, 7735, 7837, 7956, 8190, 8298, 8568, 8840, 9220, 9282, 9681, 9945, 10710, 10920, 11064, 11986, 12376, 12908, 13260, 13830, 13923, 14280, 15470, 15674, 15912, 16135, 16380, 16596, 17979, 18440, 18564, 19362, 19890, 20745, 21420, 23205, 23511, 23972, 25816, 26520, 27660, 27846, 29043, 29965, 30940, 31348, 32270, 32760, 33192, 35958, 37128, 38724, 39185, 39780, 41490, 41951, 42840, 46410, 47022, 47944, 48405, 53937, 54859, 55320, 55692, 58086, 59930, 61880, 62696, 64540, 69615, 70533, 71916, 77448, 78370, 79560, 82980, 83902, 89895, 92820, 94044, 96810, 101881, 107874, 109718, 111384, 116172, 117555, 119860, 125853, 129080, 139230, 141066, 143832, 145215, 156740, 164577, 165960, 167804, 179790, 185640, 188088, 193620, 203762, 209755, 215748, 219436, 232344, 235110, 239720, 251706, 269685, 274295, 278460, 282132, 290430, 305643, 313480, 329154, 335608, 352665, 359580, 377559, 387240, 407524, 419510, 431496, 438872, 470220, 493731, 503412, 509405, 539370, 548590, 556920, 564264, 580860, 611286, 629265, 658308, 705330, 713167, 719160, 755118, 815048, 822885, 839020, 916929, 940440, 987462, 1006824, 1018810, 1078740, 1097180, 1161720, 1222572, 1258530, 1316616, 1410660, 1426334, 1510236, 1528215, 1645770, 1678040, 1833858, 1887795, 1974924, 2037620, 2139501, 2157480, 2194360, 2445144, 2468655, 2517060, 2821320, 2852668, 3020472, 3056430, 3291540, 3565835, 3667716, 3775590, 3949848, 4075240, 4279002, 4584645, 4937310, 5034120, 5705336, 6112860, 6418503, 6583080, 7131670, 7335432, 7551180, 8558004, 9169290, 9874620, 10697505, 12225720, 12837006, 14263340, 15102360, 17116008, 18338580, 19749240, 21395010, 25674012, 28526680, 32092515, 36677160, 42790020, 51348024, 64185030, 85580040, 128370060, 256740120]

約数ペア:

[(1, 256740120), (2, 128370060), (3, 85580040), (4, 64185030), (5, 51348024), (6, 42790020), (7, 36677160), (8, 32092515), (9, 28526680), (10, 25674012), (12, 21395010), (13, 19749240), (14, 18338580), (15, 17116008), (17, 15102360), (18, 14263340), (20, 12837006), (21, 12225720), (24, 10697505), (26, 9874620), (28, 9169290), (30, 8558004), (34, 7551180), (35, 7335432), (36, 7131670), (39, 6583080), (40, 6418503), (42, 6112860), (45, 5705336), (51, 5034120), (52, 4937310), (56, 4584645), (60, 4279002), (63, 4075240), (65, 3949848), (68, 3775590), (70, 3667716), (72, 3565835), (78, 3291540), (84, 3056430), (85, 3020472), (90, 2852668), (91, 2821320), (102, 2517060), (104, 2468655), (105, 2445144), (117, 2194360), (119, 2157480), (120, 2139501), (126, 2037620), (130, 1974924), (136, 1887795), (140, 1833858), (153, 1678040), (156, 1645770), (168, 1528215), (170, 1510236), (180, 1426334), (182, 1410660), (195, 1316616), (204, 1258530), (210, 1222572), (221, 1161720), (234, 1097180), (238, 1078740), (252, 1018810), (255, 1006824), (260, 987462), (273, 940440), (280, 916929), (306, 839020), (312, 822885), (315, 815048), (340, 755118), (357, 719160), (360, 713167), (364, 705330), (390, 658308), (408, 629265), (420, 611286), (442, 580860), (455, 564264), (461, 556920), (468, 548590), (476, 539370), (504, 509405), (510, 503412), (520, 493731), (546, 470220), (585, 438872), (595, 431496), (612, 419510), (630, 407524), (663, 387240), (680, 377559), (714, 359580), (728, 352665), (765, 335608), (780, 329154), (819, 313480), (840, 305643), (884, 290430), (910, 282132), (922, 278460), (936, 274295), (952, 269685), (1020, 251706), (1071, 239720), (1092, 235110), (1105, 232344), (1170, 219436), (1190, 215748), (1224, 209755), (1260, 203762), (1326, 193620), (1365, 188088), (1383, 185640), (1428, 179790), (1530, 167804), (1547, 165960), (1560, 164577), (1638, 156740), (1768, 145215), (1785, 143832), (1820, 141066), (1844, 139230), (1989, 129080), (2040, 125853), (2142, 119860), (2184, 117555), (2210, 116172), (2305, 111384), (2340, 109718), (2380, 107874), (2520, 101881), (2652, 96810), (2730, 94044), (2766, 92820), (2856, 89895), (3060, 83902), (3094, 82980), (3227, 79560), (3276, 78370), (3315, 77448), (3570, 71916), (3640, 70533), (3688, 69615), (3978, 64540), (4095, 62696), (4149, 61880), (4284, 59930), (4420, 58086), (4610, 55692), (4641, 55320), (4680, 54859), (4760, 53937), (5304, 48405), (5355, 47944), (5460, 47022), (5532, 46410), (5993, 42840), (6120, 41951), (6188, 41490), (6454, 39780), (6552, 39185), (6630, 38724), (6915, 37128), (7140, 35958), (7735, 33192), (7837, 32760), (7956, 32270), (8190, 31348), (8298, 30940), (8568, 29965), (8840, 29043), (9220, 27846), (9282, 27660), (9681, 26520), (9945, 25816), (10710, 23972), (10920, 23511), (11064, 23205), (11986, 21420), (12376, 20745), (12908, 19890), (13260, 19362), (13830, 18564), (13923, 18440), (14280, 17979), (15470, 16596), (15674, 16380), (15912, 16135)]