2445498740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{20693}}^1$

素因数の和:21032

約数の個数: 48

約数和(自身を含む): 5423483520

約数和(自身を除く): 2977984780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 311, 380, 622, 1244, 1555, 3110, 5909, 6220, 11818, 20693, 23636, 29545, 41386, 59090, 82772, 103465, 118180, 206930, 393167, 413860, 786334, 1572668, 1965835, 3931670, 6435523, 7863340, 12871046, 25742092, 32177615, 64355230, 122274937, 128710460, 244549874, 489099748, 611374685, 1222749370, 2445498740]

約数ペア:

[(1, 2445498740), (2, 1222749370), (4, 611374685), (5, 489099748), (10, 244549874), (19, 128710460), (20, 122274937), (38, 64355230), (76, 32177615), (95, 25742092), (190, 12871046), (311, 7863340), (380, 6435523), (622, 3931670), (1244, 1965835), (1555, 1572668), (3110, 786334), (5909, 413860), (6220, 393167), (11818, 206930), (20693, 118180), (23636, 103465), (29545, 82772), (41386, 59090)]