80580580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98269}}^1$

素因数の和:98319

約数の個数: 24

約数和(自身を含む): 173348280

約数和(自身を除く): 92767700

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98269, 196538, 393076, 491345, 982690, 1965380, 4029029, 8058058, 16116116, 20145145, 40290290, 80580580]

約数ペア:

[(1, 80580580), (2, 40290290), (4, 20145145), (5, 16116116), (10, 8058058), (20, 4029029), (41, 1965380), (82, 982690), (164, 491345), (205, 393076), (410, 196538), (820, 98269)]