20022020

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1031}}^1$

素因数の和:2011

約数の個数: 24

約数和(自身を含む): 42130368

約数和(自身を除く): 22108348

約数列:

[1, 2, 4, 5, 10, 20, 971, 1031, 1942, 2062, 3884, 4124, 4855, 5155, 9710, 10310, 19420, 20620, 1001101, 2002202, 4004404, 5005505, 10011010, 20022020]

約数ペア:

[(1, 20022020), (2, 10011010), (4, 5005505), (5, 4004404), (10, 2002202), (20, 1001101), (971, 20620), (1031, 19420), (1942, 10310), (2062, 9710), (3884, 5155), (4124, 4855)]