18934420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20143}}^1$

素因数の和:20199

約数の個数: 24

約数和(自身を含む): 40610304

約数和(自身を除く): 21675884

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 20143, 40286, 80572, 100715, 201430, 402860, 946721, 1893442, 3786884, 4733605, 9467210, 18934420]

約数ペア:

[(1, 18934420), (2, 9467210), (4, 4733605), (5, 3786884), (10, 1893442), (20, 946721), (47, 402860), (94, 201430), (188, 100715), (235, 80572), (470, 40286), (940, 20143)]