201819880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107351}}^1$

素因数の和:107409

約数の個数: 32

約数和(自身を含む): 463760640

約数和(自身を除く): 261940760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 107351, 214702, 429404, 536755, 858808, 1073510, 2147020, 4294040, 5045497, 10090994, 20181988, 25227485, 40363976, 50454970, 100909940, 201819880]

約数ペア:

[(1, 201819880), (2, 100909940), (4, 50454970), (5, 40363976), (8, 25227485), (10, 20181988), (20, 10090994), (40, 5045497), (47, 4294040), (94, 2147020), (188, 1073510), (235, 858808), (376, 536755), (470, 429404), (940, 214702), (1880, 107351)]