85188980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103889}}^1$

素因数の和:103939

約数の個数: 24

約数和(自身を含む): 183261960

約数和(自身を除く): 98072980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 103889, 207778, 415556, 519445, 1038890, 2077780, 4259449, 8518898, 17037796, 21297245, 42594490, 85188980]

約数ペア:

[(1, 85188980), (2, 42594490), (4, 21297245), (5, 17037796), (10, 8518898), (20, 4259449), (41, 2077780), (82, 1038890), (164, 519445), (205, 415556), (410, 207778), (820, 103889)]