915640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2081}}^1$

素因数の和:2103

約数の個数: 32

約数和(自身を含む): 2248560

約数和(自身を除く): 1332920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 2081, 4162, 8324, 10405, 16648, 20810, 22891, 41620, 45782, 83240, 91564, 114455, 183128, 228910, 457820, 915640]

約数ペア:

[(1, 915640), (2, 457820), (4, 228910), (5, 183128), (8, 114455), (10, 91564), (11, 83240), (20, 45782), (22, 41620), (40, 22891), (44, 20810), (55, 16648), (88, 10405), (110, 8324), (220, 4162), (440, 2081)]