2155240

素因数分解:

$2^3\times 5^1\times {\mathrm{53881}}^1$

素因数の和:53892

約数の個数: 16

約数和(自身を含む): 4849380

約数和(自身を除く): 2694140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53881, 107762, 215524, 269405, 431048, 538810, 1077620, 2155240]

約数ペア:

[(1, 2155240), (2, 1077620), (4, 538810), (5, 431048), (8, 269405), (10, 215524), (20, 107762), (40, 53881)]