1815778220

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{143881}}^1$

素因数の和:144521

約数の個数: 24

約数和(自身を含む): 3819203808

約数和(自身を除く): 2003425588

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 12620, 143881, 287762, 575524, 719405, 1438810, 2877620, 90788911, 181577822, 363155644, 453944555, 907889110, 1815778220]

約数ペア:

[(1, 1815778220), (2, 907889110), (4, 453944555), (5, 363155644), (10, 181577822), (20, 90788911), (631, 2877620), (1262, 1438810), (2524, 719405), (3155, 575524), (6310, 287762), (12620, 143881)]