81246565

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{19889}}^1$

素因数の和:19956

約数の個数: 16

約数和(自身を含む): 105019200

約数和(自身を除く): 23772635

約数列:

[1, 5, 19, 43, 95, 215, 817, 4085, 19889, 99445, 377891, 855227, 1889455, 4276135, 16249313, 81246565]

約数ペア:

[(1, 81246565), (5, 16249313), (19, 4276135), (43, 1889455), (95, 855227), (215, 377891), (817, 99445), (4085, 19889)]