28566680

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1657}}^1$

素因数の和:2099

約数の個数: 32

約数和(自身を含む): 64463040

約数和(自身を除く): 35896360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1657, 1724, 2155, 3314, 3448, 4310, 6628, 8285, 8620, 13256, 16570, 17240, 33140, 66280, 714167, 1428334, 2856668, 3570835, 5713336, 7141670, 14283340, 28566680]

約数ペア:

[(1, 28566680), (2, 14283340), (4, 7141670), (5, 5713336), (8, 3570835), (10, 2856668), (20, 1428334), (40, 714167), (431, 66280), (862, 33140), (1657, 17240), (1724, 16570), (2155, 13256), (3314, 8620), (3448, 8285), (4310, 6628)]