131361680

素因数分解:

$2^4\times 5^1\times {\mathrm{1642021}}^1$

素因数の和:1642034

約数の個数: 20

約数和(自身を含む): 305416092

約数和(自身を除く): 174054412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1642021, 3284042, 6568084, 8210105, 13136168, 16420210, 26272336, 32840420, 65680840, 131361680]

約数ペア:

[(1, 131361680), (2, 65680840), (4, 32840420), (5, 26272336), (8, 16420210), (10, 13136168), (16, 8210105), (20, 6568084), (40, 3284042), (80, 1642021)]