521140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 1112832

約数和(自身を除く): 591692

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 367, 710, 734, 1420, 1468, 1835, 3670, 7340, 26057, 52114, 104228, 130285, 260570, 521140]

約数ペア:

[(1, 521140), (2, 260570), (4, 130285), (5, 104228), (10, 52114), (20, 26057), (71, 7340), (142, 3670), (284, 1835), (355, 1468), (367, 1420), (710, 734)]