20701575

素因数分解:

$3^4\times 5^2\times {\mathrm{10223}}^1$

素因数の和:10245

約数の個数: 30

約数和(自身を含む): 38350224

約数和(自身を除く): 17648649

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10223, 30669, 51115, 92007, 153345, 255575, 276021, 460035, 766725, 828063, 1380105, 2300175, 4140315, 6900525, 20701575]

約数ペア:

[(1, 20701575), (3, 6900525), (5, 4140315), (9, 2300175), (15, 1380105), (25, 828063), (27, 766725), (45, 460035), (75, 276021), (81, 255575), (135, 153345), (225, 92007), (405, 51115), (675, 30669), (2025, 10223)]