18028420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9293}}^1$

素因数の和:9399

約数の個数: 24

約数和(自身を含む): 38254104

約数和(自身を除く): 20225684

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9293, 18586, 37172, 46465, 92930, 185860, 901421, 1802842, 3605684, 4507105, 9014210, 18028420]

約数ペア:

[(1, 18028420), (2, 9014210), (4, 4507105), (5, 3605684), (10, 1802842), (20, 901421), (97, 185860), (194, 92930), (388, 46465), (485, 37172), (970, 18586), (1940, 9293)]