28675820

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4523}}^1$

素因数の和:4849

約数の個数: 24

約数和(自身を含む): 60422544

約数和(自身を除く): 31746724

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 4523, 6340, 9046, 18092, 22615, 45230, 90460, 1433791, 2867582, 5735164, 7168955, 14337910, 28675820]

約数ペア:

[(1, 28675820), (2, 14337910), (4, 7168955), (5, 5735164), (10, 2867582), (20, 1433791), (317, 90460), (634, 45230), (1268, 22615), (1585, 18092), (3170, 9046), (4523, 6340)]