9897880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2551}}^1$

素因数の和:2659

約数の個数: 32

約数和(自身を含む): 22508640

約数和(自身を除く): 12610760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2551, 3880, 5102, 10204, 12755, 20408, 25510, 51020, 102040, 247447, 494894, 989788, 1237235, 1979576, 2474470, 4948940, 9897880]

約数ペア:

[(1, 9897880), (2, 4948940), (4, 2474470), (5, 1979576), (8, 1237235), (10, 989788), (20, 494894), (40, 247447), (97, 102040), (194, 51020), (388, 25510), (485, 20408), (776, 12755), (970, 10204), (1940, 5102), (2551, 3880)]