20412640

素因数分解:

$2^5\times 5^1\times {\mathrm{127579}}^1$

素因数の和:127594

約数の個数: 24

約数和(自身を含む): 48225240

約数和(自身を除く): 27812600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 127579, 255158, 510316, 637895, 1020632, 1275790, 2041264, 2551580, 4082528, 5103160, 10206320, 20412640]

約数ペア:

[(1, 20412640), (2, 10206320), (4, 5103160), (5, 4082528), (8, 2551580), (10, 2041264), (16, 1275790), (20, 1020632), (32, 637895), (40, 510316), (80, 255158), (160, 127579)]