28057480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:92

約数の個数: 128

約数和(自身を含む): 75893760

約数和(自身を除く): 47836280

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 31, 34, 40, 44, 55, 62, 68, 85, 88, 110, 121, 124, 136, 155, 170, 187, 220, 242, 248, 310, 340, 341, 374, 440, 484, 527, 605, 620, 680, 682, 748, 935, 968, 1054, 1210, 1240, 1331, 1364, 1496, 1705, 1870, 2057, 2108, 2420, 2635, 2662, 2728, 3410, 3740, 3751, 4114, 4216, 4840, 5270, 5324, 5797, 6655, 6820, 7480, 7502, 8228, 10285, 10540, 10648, 11594, 13310, 13640, 15004, 16456, 18755, 20570, 21080, 22627, 23188, 26620, 28985, 30008, 37510, 41140, 41261, 45254, 46376, 53240, 57970, 63767, 75020, 82280, 82522, 90508, 113135, 115940, 127534, 150040, 165044, 181016, 206305, 226270, 231880, 255068, 318835, 330088, 412610, 452540, 510136, 637670, 701437, 825220, 905080, 1275340, 1402874, 1650440, 2550680, 2805748, 3507185, 5611496, 7014370, 14028740, 28057480]

約数ペア:

[(1, 28057480), (2, 14028740), (4, 7014370), (5, 5611496), (8, 3507185), (10, 2805748), (11, 2550680), (17, 1650440), (20, 1402874), (22, 1275340), (31, 905080), (34, 825220), (40, 701437), (44, 637670), (55, 510136), (62, 452540), (68, 412610), (85, 330088), (88, 318835), (110, 255068), (121, 231880), (124, 226270), (136, 206305), (155, 181016), (170, 165044), (187, 150040), (220, 127534), (242, 115940), (248, 113135), (310, 90508), (340, 82522), (341, 82280), (374, 75020), (440, 63767), (484, 57970), (527, 53240), (605, 46376), (620, 45254), (680, 41261), (682, 41140), (748, 37510), (935, 30008), (968, 28985), (1054, 26620), (1210, 23188), (1240, 22627), (1331, 21080), (1364, 20570), (1496, 18755), (1705, 16456), (1870, 15004), (2057, 13640), (2108, 13310), (2420, 11594), (2635, 10648), (2662, 10540), (2728, 10285), (3410, 8228), (3740, 7502), (3751, 7480), (4114, 6820), (4216, 6655), (4840, 5797), (5270, 5324)]