345620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1571}}^1$

素因数の和:1591

約数の個数: 24

約数和(自身を含む): 792288

約数和(自身を除く): 446668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1571, 3142, 6284, 7855, 15710, 17281, 31420, 34562, 69124, 86405, 172810, 345620]

約数ペア:

[(1, 345620), (2, 172810), (4, 86405), (5, 69124), (10, 34562), (11, 31420), (20, 17281), (22, 15710), (44, 7855), (55, 6284), (110, 3142), (220, 1571)]