20558740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21871}}^1$

素因数の和:21927

約数の個数: 24

約数和(自身を含む): 44093952

約数和(自身を除く): 23535212

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21871, 43742, 87484, 109355, 218710, 437420, 1027937, 2055874, 4111748, 5139685, 10279370, 20558740]

約数ペア:

[(1, 20558740), (2, 10279370), (4, 5139685), (5, 4111748), (10, 2055874), (20, 1027937), (47, 437420), (94, 218710), (188, 109355), (235, 87484), (470, 43742), (940, 21871)]