28395140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{14057}}^1$

素因数の和:14167

約数の個数: 24

約数和(自身を含む): 60224472

約数和(自身を除く): 31829332

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 14057, 28114, 56228, 70285, 140570, 281140, 1419757, 2839514, 5679028, 7098785, 14197570, 28395140]

約数ペア:

[(1, 28395140), (2, 14197570), (4, 7098785), (5, 5679028), (10, 2839514), (20, 1419757), (101, 281140), (202, 140570), (404, 70285), (505, 56228), (1010, 28114), (2020, 14057)]