129016280

素因数分解:

$2^3\times 5^1\times {\mathrm{3225407}}^1$

素因数の和:3225418

約数の個数: 16

約数和(自身を含む): 290286720

約数和(自身を除く): 161270440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3225407, 6450814, 12901628, 16127035, 25803256, 32254070, 64508140, 129016280]

約数ペア:

[(1, 129016280), (2, 64508140), (4, 32254070), (5, 25803256), (8, 16127035), (10, 12901628), (20, 6450814), (40, 3225407)]