20185529900

素因数分解:

$2^2\times 5^2\times {\mathrm{8081}}^1\times {\mathrm{24979}}^1$

素因数の和:33074

約数の個数: 36

約数和(自身を含む): 43809774120

約数和(自身を除く): 23624244220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 8081, 16162, 24979, 32324, 40405, 49958, 80810, 99916, 124895, 161620, 202025, 249790, 404050, 499580, 624475, 808100, 1248950, 2497900, 201855299, 403710598, 807421196, 1009276495, 2018552990, 4037105980, 5046382475, 10092764950, 20185529900]

約数ペア:

[(1, 20185529900), (2, 10092764950), (4, 5046382475), (5, 4037105980), (10, 2018552990), (20, 1009276495), (25, 807421196), (50, 403710598), (100, 201855299), (8081, 2497900), (16162, 1248950), (24979, 808100), (32324, 624475), (40405, 499580), (49958, 404050), (80810, 249790), (99916, 202025), (124895, 161620)]