126828080

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1931}}^1$

素因数の和:2765

約数の個数: 40

約数和(自身を含む): 295387344

約数和(自身を除く): 168559264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1642, 1931, 3284, 3862, 4105, 6568, 7724, 8210, 9655, 13136, 15448, 16420, 19310, 30896, 32840, 38620, 65680, 77240, 154480, 1585351, 3170702, 6341404, 7926755, 12682808, 15853510, 25365616, 31707020, 63414040, 126828080]

約数ペア:

[(1, 126828080), (2, 63414040), (4, 31707020), (5, 25365616), (8, 15853510), (10, 12682808), (16, 7926755), (20, 6341404), (40, 3170702), (80, 1585351), (821, 154480), (1642, 77240), (1931, 65680), (3284, 38620), (3862, 32840), (4105, 30896), (6568, 19310), (7724, 16420), (8210, 15448), (9655, 13136)]