20156044990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25513981}}^1$

素因数の和:25514067

約数の個数: 16

約数和(自身を含む): 36740134080

約数和(自身を除く): 16584089090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25513981, 51027962, 127569905, 255139810, 2015604499, 4031208998, 10078022495, 20156044990]

約数ペア:

[(1, 20156044990), (2, 10078022495), (5, 4031208998), (10, 2015604499), (79, 255139810), (158, 127569905), (395, 51027962), (790, 25513981)]