28159915

素因数分解:

$5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{2843}}^1$

素因数の和:3138

約数の個数: 16

約数和(自身を含む): 38769408

約数和(自身を除く): 10609493

約数列:

[1, 5, 7, 35, 283, 1415, 1981, 2843, 9905, 14215, 19901, 99505, 804569, 4022845, 5631983, 28159915]

約数ペア:

[(1, 28159915), (5, 5631983), (7, 4022845), (35, 804569), (283, 99505), (1415, 19901), (1981, 14215), (2843, 9905)]