20154549620

素因数分解:

$2^2\times 5^1\times {\mathrm{5431}}^1\times {\mathrm{185551}}^1$

素因数の和:190991

約数の個数: 24

約数和(自身を含む): 42332575488

約数和(自身を除く): 22178025868

約数列:

[1, 2, 4, 5, 10, 20, 5431, 10862, 21724, 27155, 54310, 108620, 185551, 371102, 742204, 927755, 1855510, 3711020, 1007727481, 2015454962, 4030909924, 5038637405, 10077274810, 20154549620]

約数ペア:

[(1, 20154549620), (2, 10077274810), (4, 5038637405), (5, 4030909924), (10, 2015454962), (20, 1007727481), (5431, 3711020), (10862, 1855510), (21724, 927755), (27155, 742204), (54310, 371102), (108620, 185551)]