40689685

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1\times {\mathrm{311}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 49600512

約数和(自身を除く): 8910827

約数列:

[1, 5, 137, 191, 311, 685, 955, 1555, 26167, 42607, 59401, 130835, 213035, 297005, 8137937, 40689685]

約数ペア:

[(1, 40689685), (5, 8137937), (137, 297005), (191, 213035), (311, 130835), (685, 59401), (955, 42607), (1555, 26167)]