20672180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15427}}^1$

素因数の和:15503

約数の個数: 24

約数和(自身を含む): 44062368

約数和(自身を除く): 23390188

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15427, 30854, 61708, 77135, 154270, 308540, 1033609, 2067218, 4134436, 5168045, 10336090, 20672180]

約数ペア:

[(1, 20672180), (2, 10336090), (4, 5168045), (5, 4134436), (10, 2067218), (20, 1033609), (67, 308540), (134, 154270), (268, 77135), (335, 61708), (670, 30854), (1340, 15427)]