917492020

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{30809}}^1$

素因数の和:32307

約数の個数: 24

約数和(自身を含む): 1928089800

約数和(自身を除く): 1010597780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 14890, 29780, 30809, 61618, 123236, 154045, 308090, 616180, 45874601, 91749202, 183498404, 229373005, 458746010, 917492020]

約数ペア:

[(1, 917492020), (2, 458746010), (4, 229373005), (5, 183498404), (10, 91749202), (20, 45874601), (1489, 616180), (2978, 308090), (5956, 154045), (7445, 123236), (14890, 61618), (29780, 30809)]