127403020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{15131}}^1$

素因数の和:15561

約数の個数: 24

約数和(自身を含む): 268199568

約数和(自身を除く): 140796548

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 15131, 30262, 60524, 75655, 151310, 302620, 6370151, 12740302, 25480604, 31850755, 63701510, 127403020]

約数ペア:

[(1, 127403020), (2, 63701510), (4, 31850755), (5, 25480604), (10, 12740302), (20, 6370151), (421, 302620), (842, 151310), (1684, 75655), (2105, 60524), (4210, 30262), (8420, 15131)]