64698980

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{9011}}^1$

素因数の和:9379

約数の個数: 24

約数和(自身を含む): 136261440

約数和(自身を除く): 71562460

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 9011, 18022, 36044, 45055, 90110, 180220, 3234949, 6469898, 12939796, 16174745, 32349490, 64698980]

約数ペア:

[(1, 64698980), (2, 32349490), (4, 16174745), (5, 12939796), (10, 6469898), (20, 3234949), (359, 180220), (718, 90110), (1436, 45055), (1795, 36044), (3590, 18022), (7180, 9011)]