420202280

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{49787}}^1$

素因数の和:50009

約数の個数: 32

約数和(自身を含む): 949955040

約数和(自身を除く): 529752760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 49787, 99574, 199148, 248935, 398296, 497870, 995740, 1991480, 10505057, 21010114, 42020228, 52525285, 84040456, 105050570, 210101140, 420202280]

約数ペア:

[(1, 420202280), (2, 210101140), (4, 105050570), (5, 84040456), (8, 52525285), (10, 42020228), (20, 21010114), (40, 10505057), (211, 1991480), (422, 995740), (844, 497870), (1055, 398296), (1688, 248935), (2110, 199148), (4220, 99574), (8440, 49787)]