204791240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{12161}}^1$

素因数の和:12593

約数の個数: 32

約数和(自身を含む): 461912760

約数和(自身を除く): 257121520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 12161, 16840, 24322, 48644, 60805, 97288, 121610, 243220, 486440, 5119781, 10239562, 20479124, 25598905, 40958248, 51197810, 102395620, 204791240]

約数ペア:

[(1, 204791240), (2, 102395620), (4, 51197810), (5, 40958248), (8, 25598905), (10, 20479124), (20, 10239562), (40, 5119781), (421, 486440), (842, 243220), (1684, 121610), (2105, 97288), (3368, 60805), (4210, 48644), (8420, 24322), (12161, 16840)]