20704710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53089}}^1$

素因数の和:53112

約数の個数: 32

約数和(自身を含む): 53514720

約数和(自身を除く): 32810010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53089, 106178, 159267, 265445, 318534, 530890, 690157, 796335, 1380314, 1592670, 2070471, 3450785, 4140942, 6901570, 10352355, 20704710]

約数ペア:

[(1, 20704710), (2, 10352355), (3, 6901570), (5, 4140942), (6, 3450785), (10, 2070471), (13, 1592670), (15, 1380314), (26, 796335), (30, 690157), (39, 530890), (65, 318534), (78, 265445), (130, 159267), (195, 106178), (390, 53089)]