19741880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10501}}^1$

素因数の和:10559

約数の個数: 32

約数和(自身を含む): 45368640

約数和(自身を除く): 25626760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10501, 21002, 42004, 52505, 84008, 105010, 210020, 420040, 493547, 987094, 1974188, 2467735, 3948376, 4935470, 9870940, 19741880]

約数ペア:

[(1, 19741880), (2, 9870940), (4, 4935470), (5, 3948376), (8, 2467735), (10, 1974188), (20, 987094), (40, 493547), (47, 420040), (94, 210020), (188, 105010), (235, 84008), (376, 52505), (470, 42004), (940, 21002), (1880, 10501)]