19922020

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1123}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 41920704

約数和(自身を除く): 21998684

約数列:

[1, 2, 4, 5, 10, 20, 887, 1123, 1774, 2246, 3548, 4435, 4492, 5615, 8870, 11230, 17740, 22460, 996101, 1992202, 3984404, 4980505, 9961010, 19922020]

約数ペア:

[(1, 19922020), (2, 9961010), (4, 4980505), (5, 3984404), (10, 1992202), (20, 996101), (887, 22460), (1123, 17740), (1774, 11230), (2246, 8870), (3548, 5615), (4435, 4492)]