31128280

素因数分解:

$2^3\times 5^1\times {\mathrm{827}}^1\times {\mathrm{941}}^1$

素因数の和:1779

約数の個数: 32

約数和(自身を含む): 70197840

約数和(自身を除く): 39069560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 827, 941, 1654, 1882, 3308, 3764, 4135, 4705, 6616, 7528, 8270, 9410, 16540, 18820, 33080, 37640, 778207, 1556414, 3112828, 3891035, 6225656, 7782070, 15564140, 31128280]

約数ペア:

[(1, 31128280), (2, 15564140), (4, 7782070), (5, 6225656), (8, 3891035), (10, 3112828), (20, 1556414), (40, 778207), (827, 37640), (941, 33080), (1654, 18820), (1882, 16540), (3308, 9410), (3764, 8270), (4135, 7528), (4705, 6616)]