211279990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1\times {\mathrm{1289}}^1$

素因数の和:1776

約数の個数: 32

約数和(自身を含む): 391767840

約数和(自身を除く): 180487850

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 443, 886, 1289, 2215, 2578, 4430, 6445, 12890, 16391, 32782, 47693, 81955, 95386, 163910, 238465, 476930, 571027, 1142054, 2855135, 5710270, 21127999, 42255998, 105639995, 211279990]

約数ペア:

[(1, 211279990), (2, 105639995), (5, 42255998), (10, 21127999), (37, 5710270), (74, 2855135), (185, 1142054), (370, 571027), (443, 476930), (886, 238465), (1289, 163910), (2215, 95386), (2578, 81955), (4430, 47693), (6445, 32782), (12890, 16391)]