20403780830

素因数分解:

$2^1\times 5^1\times {\mathrm{4243}}^1\times {\mathrm{480881}}^1$

素因数の和:485131

約数の個数: 16

約数和(自身を含む): 36735537744

約数和(自身を除く): 16331756914

約数列:

[1, 2, 5, 10, 4243, 8486, 21215, 42430, 480881, 961762, 2404405, 4808810, 2040378083, 4080756166, 10201890415, 20403780830]

約数ペア:

[(1, 20403780830), (2, 10201890415), (5, 4080756166), (10, 2040378083), (4243, 4808810), (8486, 2404405), (21215, 961762), (42430, 480881)]