64287560

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1871}}^1$

素因数の和:2741

約数の個数: 32

約数和(自身を含む): 144892800

約数和(自身を除く): 80605240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 1871, 3436, 3742, 4295, 6872, 7484, 8590, 9355, 14968, 17180, 18710, 34360, 37420, 74840, 1607189, 3214378, 6428756, 8035945, 12857512, 16071890, 32143780, 64287560]

約数ペア:

[(1, 64287560), (2, 32143780), (4, 16071890), (5, 12857512), (8, 8035945), (10, 6428756), (20, 3214378), (40, 1607189), (859, 74840), (1718, 37420), (1871, 34360), (3436, 18710), (3742, 17180), (4295, 14968), (6872, 9355), (7484, 8590)]