22751620

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1721}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 47878488

約数和(自身を除く): 25126868

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 1721, 2644, 3305, 3442, 6610, 6884, 8605, 13220, 17210, 34420, 1137581, 2275162, 4550324, 5687905, 11375810, 22751620]

約数ペア:

[(1, 22751620), (2, 11375810), (4, 5687905), (5, 4550324), (10, 2275162), (20, 1137581), (661, 34420), (1322, 17210), (1721, 13220), (2644, 8605), (3305, 6884), (3442, 6610)]