18754220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22871}}^1$

素因数の和:22921

約数の個数: 24

約数和(自身を含む): 40346208

約数和(自身を除く): 21591988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22871, 45742, 91484, 114355, 228710, 457420, 937711, 1875422, 3750844, 4688555, 9377110, 18754220]

約数ペア:

[(1, 18754220), (2, 9377110), (4, 4688555), (5, 3750844), (10, 1875422), (20, 937711), (41, 457420), (82, 228710), (164, 114355), (205, 91484), (410, 45742), (820, 22871)]