20642830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{158791}}^1$

素因数の和:158811

約数の個数: 16

約数和(自身を含む): 40015584

約数和(自身を除く): 19372754

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 158791, 317582, 793955, 1587910, 2064283, 4128566, 10321415, 20642830]

約数ペア:

[(1, 20642830), (2, 10321415), (5, 4128566), (10, 2064283), (13, 1587910), (26, 793955), (65, 317582), (130, 158791)]