30121880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18367}}^1$

素因数の和:18419

約数の個数: 32

約数和(自身を含む): 69431040

約数和(自身を除く): 39309160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18367, 36734, 73468, 91835, 146936, 183670, 367340, 734680, 753047, 1506094, 3012188, 3765235, 6024376, 7530470, 15060940, 30121880]

約数ペア:

[(1, 30121880), (2, 15060940), (4, 7530470), (5, 6024376), (8, 3765235), (10, 3012188), (20, 1506094), (40, 753047), (41, 734680), (82, 367340), (164, 183670), (205, 146936), (328, 91835), (410, 73468), (820, 36734), (1640, 18367)]