20455550

素因数分解:

$2^1\times 5^2\times {\mathrm{569}}^1\times {\mathrm{719}}^1$

素因数の和:1300

約数の個数: 24

約数和(自身を含む): 38167200

約数和(自身を除く): 17711650

約数列:

[1, 2, 5, 10, 25, 50, 569, 719, 1138, 1438, 2845, 3595, 5690, 7190, 14225, 17975, 28450, 35950, 409111, 818222, 2045555, 4091110, 10227775, 20455550]

約数ペア:

[(1, 20455550), (2, 10227775), (5, 4091110), (10, 2045555), (25, 818222), (50, 409111), (569, 35950), (719, 28450), (1138, 17975), (1438, 14225), (2845, 7190), (3595, 5690)]