81046580

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{39343}}^1$

素因数の和:39455

約数の個数: 24

約数和(自身を含む): 171854592

約数和(自身を除く): 90808012

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 39343, 78686, 157372, 196715, 393430, 786860, 4052329, 8104658, 16209316, 20261645, 40523290, 81046580]

約数ペア:

[(1, 81046580), (2, 40523290), (4, 20261645), (5, 16209316), (10, 8104658), (20, 4052329), (103, 786860), (206, 393430), (412, 196715), (515, 157372), (1030, 78686), (2060, 39343)]