18783820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85381}}^1$

素因数の和:85401

約数の個数: 24

約数和(自身を含む): 43032528

約数和(自身を除く): 24248708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85381, 170762, 341524, 426905, 853810, 939191, 1707620, 1878382, 3756764, 4695955, 9391910, 18783820]

約数ペア:

[(1, 18783820), (2, 9391910), (4, 4695955), (5, 3756764), (10, 1878382), (11, 1707620), (20, 939191), (22, 853810), (44, 426905), (55, 341524), (110, 170762), (220, 85381)]