9898820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6971}}^1$

素因数の和:7051

約数の個数: 24

約数和(自身を含む): 21083328

約数和(自身を除く): 11184508

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 6971, 13942, 27884, 34855, 69710, 139420, 494941, 989882, 1979764, 2474705, 4949410, 9898820]

約数ペア:

[(1, 9898820), (2, 4949410), (4, 2474705), (5, 1979764), (10, 989882), (20, 494941), (71, 139420), (142, 69710), (284, 34855), (355, 27884), (710, 13942), (1420, 6971)]