15995990

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3911}}^1$

素因数の和:4327

約数の個数: 16

約数和(自身を含む): 28870560

約数和(自身を除く): 12874570

約数列:

[1, 2, 5, 10, 409, 818, 2045, 3911, 4090, 7822, 19555, 39110, 1599599, 3199198, 7997995, 15995990]

約数ペア:

[(1, 15995990), (2, 7997995), (5, 3199198), (10, 1599599), (409, 39110), (818, 19555), (2045, 7822), (3911, 4090)]