8198975

素因数分解:

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

素因数の和:491

約数の個数: 24

約数和(自身を含む): 10988880

約数和(自身を除く): 2789905

約数列:

[1, 5, 19, 25, 41, 95, 205, 421, 475, 779, 1025, 2105, 3895, 7999, 10525, 17261, 19475, 39995, 86305, 199975, 327959, 431525, 1639795, 8198975]

約数ペア:

[(1, 8198975), (5, 1639795), (19, 431525), (25, 327959), (41, 199975), (95, 86305), (205, 39995), (421, 19475), (475, 17261), (779, 10525), (1025, 7999), (2105, 3895)]