18208180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1721}}^1$

素因数の和:1776

約数の個数: 36

約数和(自身を含む): 39995172

約数和(自身を除く): 21786992

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 1721, 2116, 2645, 3442, 5290, 6884, 8605, 10580, 17210, 34420, 39583, 79166, 158332, 197915, 395830, 791660, 910409, 1820818, 3641636, 4552045, 9104090, 18208180]

約数ペア:

[(1, 18208180), (2, 9104090), (4, 4552045), (5, 3641636), (10, 1820818), (20, 910409), (23, 791660), (46, 395830), (92, 197915), (115, 158332), (230, 79166), (460, 39583), (529, 34420), (1058, 17210), (1721, 10580), (2116, 8605), (2645, 6884), (3442, 5290)]