1990207780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9046399}}^1$

素因数の和:9046419

約数の個数: 24

約数和(自身を含む): 4559385600

約数和(自身を除く): 2569177820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 9046399, 18092798, 36185596, 45231995, 90463990, 99510389, 180927980, 199020778, 398041556, 497551945, 995103890, 1990207780]

約数ペア:

[(1, 1990207780), (2, 995103890), (4, 497551945), (5, 398041556), (10, 199020778), (11, 180927980), (20, 99510389), (22, 90463990), (44, 45231995), (55, 36185596), (110, 18092798), (220, 9046399)]