990295490

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{223543}}^1$

素因数の和:223993

約数の個数: 16

約数和(自身を含む): 1786563648

約数和(自身を除く): 796268158

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 223543, 447086, 1117715, 2235430, 99029549, 198059098, 495147745, 990295490]

約数ペア:

[(1, 990295490), (2, 495147745), (5, 198059098), (10, 99029549), (443, 2235430), (886, 1117715), (2215, 447086), (4430, 223543)]