8157820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3371}}^1$

素因数の和:3402

約数の個数: 36

約数和(自身を含む): 18835992

約数和(自身を除く): 10678172

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 3371, 6742, 13484, 16855, 33710, 37081, 67420, 74162, 148324, 185405, 370810, 407891, 741620, 815782, 1631564, 2039455, 4078910, 8157820]

約数ペア:

[(1, 8157820), (2, 4078910), (4, 2039455), (5, 1631564), (10, 815782), (11, 741620), (20, 407891), (22, 370810), (44, 185405), (55, 148324), (110, 74162), (121, 67420), (220, 37081), (242, 33710), (484, 16855), (605, 13484), (1210, 6742), (2420, 3371)]