277640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 682560

約数和(自身を除く): 404920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 631, 1262, 2524, 3155, 5048, 6310, 6941, 12620, 13882, 25240, 27764, 34705, 55528, 69410, 138820, 277640]

約数ペア:

[(1, 277640), (2, 138820), (4, 69410), (5, 55528), (8, 34705), (10, 27764), (11, 25240), (20, 13882), (22, 12620), (40, 6941), (44, 6310), (55, 5048), (88, 3155), (110, 2524), (220, 1262), (440, 631)]