31156105

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 40517064

約数和(自身を除く): 9360959

約数列:

[1, 5, 19, 41, 95, 205, 361, 421, 779, 1805, 2105, 3895, 7999, 14801, 17261, 39995, 74005, 86305, 151981, 327959, 759905, 1639795, 6231221, 31156105]

約数ペア:

[(1, 31156105), (5, 6231221), (19, 1639795), (41, 759905), (95, 327959), (205, 151981), (361, 86305), (421, 74005), (779, 39995), (1805, 17261), (2105, 14801), (3895, 7999)]