28482760

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1741}}^1$

素因数の和:2161

約数の個数: 32

約数和(自身を含む): 64279800

約数和(自身を除く): 35797040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 1741, 2045, 3272, 3482, 4090, 6964, 8180, 8705, 13928, 16360, 17410, 34820, 69640, 712069, 1424138, 2848276, 3560345, 5696552, 7120690, 14241380, 28482760]

約数ペア:

[(1, 28482760), (2, 14241380), (4, 7120690), (5, 5696552), (8, 3560345), (10, 2848276), (20, 1424138), (40, 712069), (409, 69640), (818, 34820), (1636, 17410), (1741, 16360), (2045, 13928), (3272, 8705), (3482, 8180), (4090, 6964)]