18627940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22717}}^1$

素因数の和:22767

約数の個数: 24

約数和(自身を含む): 40074552

約数和(自身を除く): 21446612

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22717, 45434, 90868, 113585, 227170, 454340, 931397, 1862794, 3725588, 4656985, 9313970, 18627940]

約数ペア:

[(1, 18627940), (2, 9313970), (4, 4656985), (5, 3725588), (10, 1862794), (20, 931397), (41, 454340), (82, 227170), (164, 113585), (205, 90868), (410, 45434), (820, 22717)]