18495640

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{683}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 41737680

約数和(自身を除く): 23242040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 683, 1354, 1366, 2708, 2732, 3385, 3415, 5416, 5464, 6770, 6830, 13540, 13660, 27080, 27320, 462391, 924782, 1849564, 2311955, 3699128, 4623910, 9247820, 18495640]

約数ペア:

[(1, 18495640), (2, 9247820), (4, 4623910), (5, 3699128), (8, 2311955), (10, 1849564), (20, 924782), (40, 462391), (677, 27320), (683, 27080), (1354, 13660), (1366, 13540), (2708, 6830), (2732, 6770), (3385, 5464), (3415, 5416)]