181898320

素因数分解:

$2^4\times 5^1\times {\mathrm{2273729}}^1$

素因数の和:2273742

約数の個数: 20

約数和(自身を含む): 422913780

約数和(自身を除く): 241015460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2273729, 4547458, 9094916, 11368645, 18189832, 22737290, 36379664, 45474580, 90949160, 181898320]

約数ペア:

[(1, 181898320), (2, 90949160), (4, 45474580), (5, 36379664), (8, 22737290), (10, 18189832), (16, 11368645), (20, 9094916), (40, 4547458), (80, 2273729)]