208106680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73277}}^1$

素因数の和:73359

約数の個数: 32

約数和(自身を含む): 474841440

約数和(自身を除く): 266734760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 73277, 146554, 293108, 366385, 586216, 732770, 1465540, 2931080, 5202667, 10405334, 20810668, 26013335, 41621336, 52026670, 104053340, 208106680]

約数ペア:

[(1, 208106680), (2, 104053340), (4, 52026670), (5, 41621336), (8, 26013335), (10, 20810668), (20, 10405334), (40, 5202667), (71, 2931080), (142, 1465540), (284, 732770), (355, 586216), (568, 366385), (710, 293108), (1420, 146554), (2840, 73277)]