2721260

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 5774496

約数和(自身を除く): 3053236

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 1321, 2060, 2642, 5284, 6605, 13210, 26420, 136063, 272126, 544252, 680315, 1360630, 2721260]

約数ペア:

[(1, 2721260), (2, 1360630), (4, 680315), (5, 544252), (10, 272126), (20, 136063), (103, 26420), (206, 13210), (412, 6605), (515, 5284), (1030, 2642), (1321, 2060)]