66004420

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8069}}^1$

素因数の和:8487

約数の個数: 24

約数和(自身を含む): 138965400

約数和(自身を除く): 72960980

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8069, 8180, 16138, 32276, 40345, 80690, 161380, 3300221, 6600442, 13200884, 16501105, 33002210, 66004420]

約数ペア:

[(1, 66004420), (2, 33002210), (4, 16501105), (5, 13200884), (10, 6600442), (20, 3300221), (409, 161380), (818, 80690), (1636, 40345), (2045, 32276), (4090, 16138), (8069, 8180)]