21338000

素因数分解:

$2^4\times 5^3\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 80

約数和(自身を含む): 52925184

約数和(自身を除く): 31587184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 125, 188, 200, 227, 235, 250, 376, 400, 454, 470, 500, 752, 908, 940, 1000, 1135, 1175, 1816, 1880, 2000, 2270, 2350, 3632, 3760, 4540, 4700, 5675, 5875, 9080, 9400, 10669, 11350, 11750, 18160, 18800, 21338, 22700, 23500, 28375, 42676, 45400, 47000, 53345, 56750, 85352, 90800, 94000, 106690, 113500, 170704, 213380, 227000, 266725, 426760, 454000, 533450, 853520, 1066900, 1333625, 2133800, 2667250, 4267600, 5334500, 10669000, 21338000]

約数ペア:

[(1, 21338000), (2, 10669000), (4, 5334500), (5, 4267600), (8, 2667250), (10, 2133800), (16, 1333625), (20, 1066900), (25, 853520), (40, 533450), (47, 454000), (50, 426760), (80, 266725), (94, 227000), (100, 213380), (125, 170704), (188, 113500), (200, 106690), (227, 94000), (235, 90800), (250, 85352), (376, 56750), (400, 53345), (454, 47000), (470, 45400), (500, 42676), (752, 28375), (908, 23500), (940, 22700), (1000, 21338), (1135, 18800), (1175, 18160), (1816, 11750), (1880, 11350), (2000, 10669), (2270, 9400), (2350, 9080), (3632, 5875), (3760, 5675), (4540, 4700)]