18365980

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9467}}^1$

素因数の和:9573

約数の個数: 24

約数和(自身を含む): 38970288

約数和(自身を除く): 20604308

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9467, 18934, 37868, 47335, 94670, 189340, 918299, 1836598, 3673196, 4591495, 9182990, 18365980]

約数ペア:

[(1, 18365980), (2, 9182990), (4, 4591495), (5, 3673196), (10, 1836598), (20, 918299), (97, 189340), (194, 94670), (388, 47335), (485, 37868), (970, 18934), (1940, 9467)]