28670900

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{701}}^1$

素因数の和:1124

約数の個数: 36

約数和(自身を含む): 62456940

約数和(自身を除く): 33786040

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 701, 818, 1402, 1636, 2045, 2804, 3505, 4090, 7010, 8180, 10225, 14020, 17525, 20450, 35050, 40900, 70100, 286709, 573418, 1146836, 1433545, 2867090, 5734180, 7167725, 14335450, 28670900]

約数ペア:

[(1, 28670900), (2, 14335450), (4, 7167725), (5, 5734180), (10, 2867090), (20, 1433545), (25, 1146836), (50, 573418), (100, 286709), (409, 70100), (701, 40900), (818, 35050), (1402, 20450), (1636, 17525), (2045, 14020), (2804, 10225), (3505, 8180), (4090, 7010)]