640604328

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2141}}^1$

素因数の和:2307

約数の個数: 128

約数和(自身を含む): 1986405120

約数和(自身を除く): 1345800792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 137, 156, 168, 182, 273, 274, 312, 364, 411, 546, 548, 728, 822, 959, 1092, 1096, 1644, 1781, 1918, 2141, 2184, 2877, 3288, 3562, 3836, 4282, 5343, 5754, 6423, 7124, 7672, 8564, 10686, 11508, 12467, 12846, 14248, 14987, 17128, 21372, 23016, 24934, 25692, 27833, 29974, 37401, 42744, 44961, 49868, 51384, 55666, 59948, 74802, 83499, 89922, 99736, 111332, 119896, 149604, 166998, 179844, 194831, 222664, 293317, 299208, 333996, 359688, 389662, 584493, 586634, 667992, 779324, 879951, 1168986, 1173268, 1558648, 1759902, 2053219, 2337972, 2346536, 3519804, 3813121, 4106438, 4675944, 6159657, 7039608, 7626242, 8212876, 11439363, 12319314, 15252484, 16425752, 22878726, 24638628, 26691847, 30504968, 45757452, 49277256, 53383694, 80075541, 91514904, 106767388, 160151082, 213534776, 320302164, 640604328]

約数ペア:

[(1, 640604328), (2, 320302164), (3, 213534776), (4, 160151082), (6, 106767388), (7, 91514904), (8, 80075541), (12, 53383694), (13, 49277256), (14, 45757452), (21, 30504968), (24, 26691847), (26, 24638628), (28, 22878726), (39, 16425752), (42, 15252484), (52, 12319314), (56, 11439363), (78, 8212876), (84, 7626242), (91, 7039608), (104, 6159657), (137, 4675944), (156, 4106438), (168, 3813121), (182, 3519804), (273, 2346536), (274, 2337972), (312, 2053219), (364, 1759902), (411, 1558648), (546, 1173268), (548, 1168986), (728, 879951), (822, 779324), (959, 667992), (1092, 586634), (1096, 584493), (1644, 389662), (1781, 359688), (1918, 333996), (2141, 299208), (2184, 293317), (2877, 222664), (3288, 194831), (3562, 179844), (3836, 166998), (4282, 149604), (5343, 119896), (5754, 111332), (6423, 99736), (7124, 89922), (7672, 83499), (8564, 74802), (10686, 59948), (11508, 55666), (12467, 51384), (12846, 49868), (14248, 44961), (14987, 42744), (17128, 37401), (21372, 29974), (23016, 27833), (24934, 25692)]