268939480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{337}}^1$

素因数の和:700

約数の個数: 64

約数和(自身を含む): 617647680

約数和(自身を除く): 348708200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 281, 284, 337, 355, 562, 568, 674, 710, 1124, 1348, 1405, 1420, 1685, 2248, 2696, 2810, 2840, 3370, 5620, 6740, 11240, 13480, 19951, 23927, 39902, 47854, 79804, 94697, 95708, 99755, 119635, 159608, 189394, 191416, 199510, 239270, 378788, 399020, 473485, 478540, 757576, 798040, 946970, 957080, 1893940, 3787880, 6723487, 13446974, 26893948, 33617435, 53787896, 67234870, 134469740, 268939480]

約数ペア:

[(1, 268939480), (2, 134469740), (4, 67234870), (5, 53787896), (8, 33617435), (10, 26893948), (20, 13446974), (40, 6723487), (71, 3787880), (142, 1893940), (281, 957080), (284, 946970), (337, 798040), (355, 757576), (562, 478540), (568, 473485), (674, 399020), (710, 378788), (1124, 239270), (1348, 199510), (1405, 191416), (1420, 189394), (1685, 159608), (2248, 119635), (2696, 99755), (2810, 95708), (2840, 94697), (3370, 79804), (5620, 47854), (6740, 39902), (11240, 23927), (13480, 19951)]