20890792016

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8646851}}^1$

素因数の和:8647010

約数の個数: 20

約数和(自身を含む): 40743966624

約数和(自身を除く): 19853174608

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8646851, 17293702, 34587404, 69174808, 138349616, 1305674501, 2611349002, 5222698004, 10445396008, 20890792016]

約数ペア:

[(1, 20890792016), (2, 10445396008), (4, 5222698004), (8, 2611349002), (16, 1305674501), (151, 138349616), (302, 69174808), (604, 34587404), (1208, 17293702), (2416, 8646851)]