208042540

素因数分解:

$2^2\times 5^1\times {\mathrm{1787}}^1\times {\mathrm{5821}}^1$

素因数の和:7617

約数の個数: 24

約数和(自身を含む): 437208912

約数和(自身を除く): 229166372

約数列:

[1, 2, 4, 5, 10, 20, 1787, 3574, 5821, 7148, 8935, 11642, 17870, 23284, 29105, 35740, 58210, 116420, 10402127, 20804254, 41608508, 52010635, 104021270, 208042540]

約数ペア:

[(1, 208042540), (2, 104021270), (4, 52010635), (5, 41608508), (10, 20804254), (20, 10402127), (1787, 116420), (3574, 58210), (5821, 35740), (7148, 29105), (8935, 23284), (11642, 17870)]