8421380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 19535040

約数和(自身を除く): 11113660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 379, 404, 505, 758, 1010, 1111, 1516, 1895, 2020, 2222, 3790, 4169, 4444, 5555, 7580, 8338, 11110, 16676, 20845, 22220, 38279, 41690, 76558, 83380, 153116, 191395, 382790, 421069, 765580, 842138, 1684276, 2105345, 4210690, 8421380]

約数ペア:

[(1, 8421380), (2, 4210690), (4, 2105345), (5, 1684276), (10, 842138), (11, 765580), (20, 421069), (22, 382790), (44, 191395), (55, 153116), (101, 83380), (110, 76558), (202, 41690), (220, 38279), (379, 22220), (404, 20845), (505, 16676), (758, 11110), (1010, 8338), (1111, 7580), (1516, 5555), (1895, 4444), (2020, 4169), (2222, 3790)]