18501680

素因数分解:

$2^4\times 5^1\times {\mathrm{231271}}^1$

素因数の和:231284

約数の個数: 20

約数和(自身を含む): 43016592

約数和(自身を除く): 24514912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231271, 462542, 925084, 1156355, 1850168, 2312710, 3700336, 4625420, 9250840, 18501680]

約数ペア:

[(1, 18501680), (2, 9250840), (4, 4625420), (5, 3700336), (8, 2312710), (10, 1850168), (16, 1156355), (20, 925084), (40, 462542), (80, 231271)]