221249140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1580351}}^1$

素因数の和:1580367

約数の個数: 24

約数和(自身を含む): 530998272

約数和(自身を除く): 309749132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1580351, 3160702, 6321404, 7901755, 11062457, 15803510, 22124914, 31607020, 44249828, 55312285, 110624570, 221249140]

約数ペア:

[(1, 221249140), (2, 110624570), (4, 55312285), (5, 44249828), (7, 31607020), (10, 22124914), (14, 15803510), (20, 11062457), (28, 7901755), (35, 6321404), (70, 3160702), (140, 1580351)]