66417080

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3187}}^1$

素因数の和:3719

約数の個数: 32

約数和(自身を含む): 149772240

約数和(自身を除く): 83355160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 3187, 4168, 5210, 6374, 10420, 12748, 15935, 20840, 25496, 31870, 63740, 127480, 1660427, 3320854, 6641708, 8302135, 13283416, 16604270, 33208540, 66417080]

約数ペア:

[(1, 66417080), (2, 33208540), (4, 16604270), (5, 13283416), (8, 8302135), (10, 6641708), (20, 3320854), (40, 1660427), (521, 127480), (1042, 63740), (2084, 31870), (2605, 25496), (3187, 20840), (4168, 15935), (5210, 12748), (6374, 10420)]