28781140

素因数分解:

$2^2\times 5^1\times {\mathrm{757}}^1\times {\mathrm{1901}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 60552072

約数和(自身を除く): 31770932

約数列:

[1, 2, 4, 5, 10, 20, 757, 1514, 1901, 3028, 3785, 3802, 7570, 7604, 9505, 15140, 19010, 38020, 1439057, 2878114, 5756228, 7195285, 14390570, 28781140]

約数ペア:

[(1, 28781140), (2, 14390570), (4, 7195285), (5, 5756228), (10, 2878114), (20, 1439057), (757, 38020), (1514, 19010), (1901, 15140), (3028, 9505), (3785, 7604), (3802, 7570)]