18001660

素因数分解:

$2^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1721}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 37897776

約数和(自身を除く): 19896116

約数列:

[1, 2, 4, 5, 10, 20, 523, 1046, 1721, 2092, 2615, 3442, 5230, 6884, 8605, 10460, 17210, 34420, 900083, 1800166, 3600332, 4500415, 9000830, 18001660]

約数ペア:

[(1, 18001660), (2, 9000830), (4, 4500415), (5, 3600332), (10, 1800166), (20, 900083), (523, 34420), (1046, 17210), (1721, 10460), (2092, 8605), (2615, 6884), (3442, 5230)]