20857850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32089}}^1$

素因数の和:32114

約数の個数: 24

約数和(自身を含む): 41781180

約数和(自身を除く): 20923330

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32089, 64178, 160445, 320890, 417157, 802225, 834314, 1604450, 2085785, 4171570, 10428925, 20857850]

約数ペア:

[(1, 20857850), (2, 10428925), (5, 4171570), (10, 2085785), (13, 1604450), (25, 834314), (26, 802225), (50, 417157), (65, 320890), (130, 160445), (325, 64178), (650, 32089)]