128566000

素因数分解:

$2^4\times 5^3\times {\mathrm{64283}}^1$

素因数の和:64306

約数の個数: 40

約数和(自身を含む): 310877424

約数和(自身を除く): 182311424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 64283, 128566, 257132, 321415, 514264, 642830, 1028528, 1285660, 1607075, 2571320, 3214150, 5142640, 6428300, 8035375, 12856600, 16070750, 25713200, 32141500, 64283000, 128566000]

約数ペア:

[(1, 128566000), (2, 64283000), (4, 32141500), (5, 25713200), (8, 16070750), (10, 12856600), (16, 8035375), (20, 6428300), (25, 5142640), (40, 3214150), (50, 2571320), (80, 1607075), (100, 1285660), (125, 1028528), (200, 642830), (250, 514264), (400, 321415), (500, 257132), (1000, 128566), (2000, 64283)]