628157680

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{56489}}^1$

素因数の和:56641

約数の個数: 40

約数和(自身を含む): 1470999600

約数和(自身を除く): 842841920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 56489, 112978, 225956, 282445, 451912, 564890, 903824, 1129780, 2259560, 4519120, 7851971, 15703942, 31407884, 39259855, 62815768, 78519710, 125631536, 157039420, 314078840, 628157680]

約数ペア:

[(1, 628157680), (2, 314078840), (4, 157039420), (5, 125631536), (8, 78519710), (10, 62815768), (16, 39259855), (20, 31407884), (40, 15703942), (80, 7851971), (139, 4519120), (278, 2259560), (556, 1129780), (695, 903824), (1112, 564890), (1390, 451912), (2224, 282445), (2780, 225956), (5560, 112978), (11120, 56489)]