39901240

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3187}}^1$

素因数の和:3511

約数の個数: 32

約数和(自身を含む): 90092880

約数和(自身を除く): 50191640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 3187, 6260, 6374, 12520, 12748, 15935, 25496, 31870, 63740, 127480, 997531, 1995062, 3990124, 4987655, 7980248, 9975310, 19950620, 39901240]

約数ペア:

[(1, 39901240), (2, 19950620), (4, 9975310), (5, 7980248), (8, 4987655), (10, 3990124), (20, 1995062), (40, 997531), (313, 127480), (626, 63740), (1252, 31870), (1565, 25496), (2504, 15935), (3130, 12748), (3187, 12520), (6260, 6374)]