213119980

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{8713}}^1$

素因数の和:9945

約数の個数: 24

約数和(自身を含む): 447969312

約数和(自身を除く): 234849332

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 4892, 6115, 8713, 12230, 17426, 24460, 34852, 43565, 87130, 174260, 10655999, 21311998, 42623996, 53279995, 106559990, 213119980]

約数ペア:

[(1, 213119980), (2, 106559990), (4, 53279995), (5, 42623996), (10, 21311998), (20, 10655999), (1223, 174260), (2446, 87130), (4892, 43565), (6115, 34852), (8713, 24460), (12230, 17426)]