218159620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1558283}}^1$

素因数の和:1558299

約数の個数: 24

約数和(自身を含む): 523583424

約数和(自身を除く): 305423804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1558283, 3116566, 6233132, 7791415, 10907981, 15582830, 21815962, 31165660, 43631924, 54539905, 109079810, 218159620]

約数ペア:

[(1, 218159620), (2, 109079810), (4, 54539905), (5, 43631924), (7, 31165660), (10, 21815962), (14, 15582830), (20, 10907981), (28, 7791415), (35, 6233132), (70, 3116566), (140, 1558283)]