85191220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{43913}}^1$

素因数の和:44019

約数の個数: 24

約数和(自身を含む): 180750024

約数和(自身を除く): 95558804

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 43913, 87826, 175652, 219565, 439130, 878260, 4259561, 8519122, 17038244, 21297805, 42595610, 85191220]

約数ペア:

[(1, 85191220), (2, 42595610), (4, 21297805), (5, 17038244), (10, 8519122), (20, 4259561), (97, 878260), (194, 439130), (388, 219565), (485, 175652), (970, 87826), (1940, 43913)]