20227660

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1987}}^1$

素因数の和:2505

約数の個数: 24

約数和(自身を含む): 42582960

約数和(自身を除く): 22355300

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1987, 2036, 2545, 3974, 5090, 7948, 9935, 10180, 19870, 39740, 1011383, 2022766, 4045532, 5056915, 10113830, 20227660]

約数ペア:

[(1, 20227660), (2, 10113830), (4, 5056915), (5, 4045532), (10, 2022766), (20, 1011383), (509, 39740), (1018, 19870), (1987, 10180), (2036, 9935), (2545, 7948), (3974, 5090)]