397925890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{560459}}^1$

素因数の和:560537

約数の個数: 16

約数和(自身を含む): 726356160

約数和(自身を除く): 328430270

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 560459, 1120918, 2802295, 5604590, 39792589, 79585178, 198962945, 397925890]

約数ペア:

[(1, 397925890), (2, 198962945), (5, 79585178), (10, 39792589), (71, 5604590), (142, 2802295), (355, 1120918), (710, 560459)]