20138260

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4397}}^1$

素因数の和:4635

約数の個数: 24

約数和(自身を含む): 42484680

約数和(自身を除く): 22346420

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4397, 4580, 8794, 17588, 21985, 43970, 87940, 1006913, 2013826, 4027652, 5034565, 10069130, 20138260]

約数ペア:

[(1, 20138260), (2, 10069130), (4, 5034565), (5, 4027652), (10, 2013826), (20, 1006913), (229, 87940), (458, 43970), (916, 21985), (1145, 17588), (2290, 8794), (4397, 4580)]