18409780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31741}}^1$

素因数の和:31779

約数の個数: 24

約数和(自身を含む): 39994920

約数和(自身を除く): 21585140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 31741, 63482, 126964, 158705, 317410, 634820, 920489, 1840978, 3681956, 4602445, 9204890, 18409780]

約数ペア:

[(1, 18409780), (2, 9204890), (4, 4602445), (5, 3681956), (10, 1840978), (20, 920489), (29, 634820), (58, 317410), (116, 158705), (145, 126964), (290, 63482), (580, 31741)]