28331560

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{2557}}^1$

素因数の和:2845

約数の個数: 32

約数和(自身を含む): 64001160

約数和(自身を除く): 35669600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2557, 2770, 5114, 5540, 10228, 11080, 12785, 20456, 25570, 51140, 102280, 708289, 1416578, 2833156, 3541445, 5666312, 7082890, 14165780, 28331560]

約数ペア:

[(1, 28331560), (2, 14165780), (4, 7082890), (5, 5666312), (8, 3541445), (10, 2833156), (20, 1416578), (40, 708289), (277, 102280), (554, 51140), (1108, 25570), (1385, 20456), (2216, 12785), (2557, 11080), (2770, 10228), (5114, 5540)]