9717220

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1249}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 20475000

約数和(自身を除く): 10757780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1249, 1556, 1945, 2498, 3890, 4996, 6245, 7780, 12490, 24980, 485861, 971722, 1943444, 2429305, 4858610, 9717220]

約数ペア:

[(1, 9717220), (2, 4858610), (4, 2429305), (5, 1943444), (10, 971722), (20, 485861), (389, 24980), (778, 12490), (1249, 7780), (1556, 6245), (1945, 4996), (2498, 3890)]