56855380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40039}}^1$

素因数の和:40119

約数の個数: 24

約数和(自身を含む): 121080960

約数和(自身を除く): 64225580

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 40039, 80078, 160156, 200195, 400390, 800780, 2842769, 5685538, 11371076, 14213845, 28427690, 56855380]

約数ペア:

[(1, 56855380), (2, 28427690), (4, 14213845), (5, 11371076), (10, 5685538), (20, 2842769), (71, 800780), (142, 400390), (284, 200195), (355, 160156), (710, 80078), (1420, 40039)]