90164920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{17749}}^1$

素因数の和:17887

約数の個数: 32

約数和(自身を含む): 204480000

約数和(自身を除く): 114315080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 17749, 35498, 70996, 88745, 141992, 177490, 354980, 709960, 2254123, 4508246, 9016492, 11270615, 18032984, 22541230, 45082460, 90164920]

約数ペア:

[(1, 90164920), (2, 45082460), (4, 22541230), (5, 18032984), (8, 11270615), (10, 9016492), (20, 4508246), (40, 2254123), (127, 709960), (254, 354980), (508, 177490), (635, 141992), (1016, 88745), (1270, 70996), (2540, 35498), (5080, 17749)]