25136840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 58786560

約数和(自身を除く): 33649720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 106, 142, 167, 212, 265, 284, 334, 355, 424, 530, 568, 668, 710, 835, 1060, 1336, 1420, 1670, 2120, 2840, 3340, 3763, 6680, 7526, 8851, 11857, 15052, 17702, 18815, 23714, 30104, 35404, 37630, 44255, 47428, 59285, 70808, 75260, 88510, 94856, 118570, 150520, 177020, 237140, 354040, 474280, 628421, 1256842, 2513684, 3142105, 5027368, 6284210, 12568420, 25136840]

約数ペア:

[(1, 25136840), (2, 12568420), (4, 6284210), (5, 5027368), (8, 3142105), (10, 2513684), (20, 1256842), (40, 628421), (53, 474280), (71, 354040), (106, 237140), (142, 177020), (167, 150520), (212, 118570), (265, 94856), (284, 88510), (334, 75260), (355, 70808), (424, 59285), (530, 47428), (568, 44255), (668, 37630), (710, 35404), (835, 30104), (1060, 23714), (1336, 18815), (1420, 17702), (1670, 15052), (2120, 11857), (2840, 8851), (3340, 7526), (3763, 6680)]