87881180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{55621}}^1$

素因数の和:55709

約数の個数: 24

約数和(自身を含む): 186889920

約数和(自身を除く): 99008740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 55621, 111242, 222484, 278105, 556210, 1112420, 4394059, 8788118, 17576236, 21970295, 43940590, 87881180]

約数ペア:

[(1, 87881180), (2, 43940590), (4, 21970295), (5, 17576236), (10, 8788118), (20, 4394059), (79, 1112420), (158, 556210), (316, 278105), (395, 222484), (790, 111242), (1580, 55621)]