520018660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3714419}}^1$

素因数の和:3714435

約数の個数: 24

約数和(自身を含む): 1248045120

約数和(自身を除く): 728026460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3714419, 7428838, 14857676, 18572095, 26000933, 37144190, 52001866, 74288380, 104003732, 130004665, 260009330, 520018660]

約数ペア:

[(1, 520018660), (2, 260009330), (4, 130004665), (5, 104003732), (7, 74288380), (10, 52001866), (14, 37144190), (20, 26000933), (28, 18572095), (35, 14857676), (70, 7428838), (140, 3714419)]