20621010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1069}}^1$

素因数の和:1722

約数の個数: 32

約数和(自身を含む): 49613760

約数和(自身を除く): 28992750

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 643, 1069, 1286, 1929, 2138, 3207, 3215, 3858, 5345, 6414, 6430, 9645, 10690, 16035, 19290, 32070, 687367, 1374734, 2062101, 3436835, 4124202, 6873670, 10310505, 20621010]

約数ペア:

[(1, 20621010), (2, 10310505), (3, 6873670), (5, 4124202), (6, 3436835), (10, 2062101), (15, 1374734), (30, 687367), (643, 32070), (1069, 19290), (1286, 16035), (1929, 10690), (2138, 9645), (3207, 6430), (3215, 6414), (3858, 5345)]