86438980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227471}}^1$

素因数の和:227499

約数の個数: 24

約数和(自身を含む): 191076480

約数和(自身を除く): 104637500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 227471, 454942, 909884, 1137355, 2274710, 4321949, 4549420, 8643898, 17287796, 21609745, 43219490, 86438980]

約数ペア:

[(1, 86438980), (2, 43219490), (4, 21609745), (5, 17287796), (10, 8643898), (19, 4549420), (20, 4321949), (38, 2274710), (76, 1137355), (95, 909884), (190, 454942), (380, 227471)]