20197767620

素因数分解:

$2^2\times 5^1\times {\mathrm{19751}}^1\times {\mathrm{51131}}^1$

素因数の和:70891

約数の個数: 24

約数和(自身を含む): 42418289088

約数和(自身を除く): 22220521468

約数列:

[1, 2, 4, 5, 10, 20, 19751, 39502, 51131, 79004, 98755, 102262, 197510, 204524, 255655, 395020, 511310, 1022620, 1009888381, 2019776762, 4039553524, 5049441905, 10098883810, 20197767620]

約数ペア:

[(1, 20197767620), (2, 10098883810), (4, 5049441905), (5, 4039553524), (10, 2019776762), (20, 1009888381), (19751, 1022620), (39502, 511310), (51131, 395020), (79004, 255655), (98755, 204524), (102262, 197510)]