20216402515

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{157}}^1\times {\mathrm{71339}}^1$

素因数の和:71539

約数の個数: 24

約数和(自身を含む): 25767151920

約数和(自身を除く): 5550749405

約数列:

[1, 5, 19, 95, 157, 361, 785, 1805, 2983, 14915, 56677, 71339, 283385, 356695, 1355441, 6777205, 11200223, 25753379, 56001115, 128766895, 212804237, 1064021185, 4043280503, 20216402515]

約数ペア:

[(1, 20216402515), (5, 4043280503), (19, 1064021185), (95, 212804237), (157, 128766895), (361, 56001115), (785, 25753379), (1805, 11200223), (2983, 6777205), (14915, 1355441), (56677, 356695), (71339, 283385)]