9921160

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2557}}^1$

素因数の和:2665

約数の個数: 32

約数和(自身を含む): 22561560

約数和(自身を除く): 12640400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2557, 3880, 5114, 10228, 12785, 20456, 25570, 51140, 102280, 248029, 496058, 992116, 1240145, 1984232, 2480290, 4960580, 9921160]

約数ペア:

[(1, 9921160), (2, 4960580), (4, 2480290), (5, 1984232), (8, 1240145), (10, 992116), (20, 496058), (40, 248029), (97, 102280), (194, 51140), (388, 25570), (485, 20456), (776, 12785), (970, 10228), (1940, 5114), (2557, 3880)]