28821040

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1151}}^1$

素因数の和:1477

約数の個数: 40

約数和(自身を含む): 67281408

約数和(自身を除く): 38460368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1151, 1252, 1565, 2302, 2504, 3130, 4604, 5008, 5755, 6260, 9208, 11510, 12520, 18416, 23020, 25040, 46040, 92080, 360263, 720526, 1441052, 1801315, 2882104, 3602630, 5764208, 7205260, 14410520, 28821040]

約数ペア:

[(1, 28821040), (2, 14410520), (4, 7205260), (5, 5764208), (8, 3602630), (10, 2882104), (16, 1801315), (20, 1441052), (40, 720526), (80, 360263), (313, 92080), (626, 46040), (1151, 25040), (1252, 23020), (1565, 18416), (2302, 12520), (2504, 11510), (3130, 9208), (4604, 6260), (5008, 5755)]