20441620

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4241}}^1$

素因数の和:4491

約数の個数: 24

約数和(自身を含む): 43115688

約数和(自身を除く): 22674068

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4241, 4820, 8482, 16964, 21205, 42410, 84820, 1022081, 2044162, 4088324, 5110405, 10220810, 20441620]

約数ペア:

[(1, 20441620), (2, 10220810), (4, 5110405), (5, 4088324), (10, 2044162), (20, 1022081), (241, 84820), (482, 42410), (964, 21205), (1205, 16964), (2410, 8482), (4241, 4820)]