18283000

素因数分解:

$2^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 43804800

約数和(自身を除く): 25521800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 235, 250, 376, 389, 470, 500, 778, 940, 1000, 1175, 1556, 1880, 1945, 2350, 3112, 3890, 4700, 5875, 7780, 9400, 9725, 11750, 15560, 18283, 19450, 23500, 36566, 38900, 47000, 48625, 73132, 77800, 91415, 97250, 146264, 182830, 194500, 365660, 389000, 457075, 731320, 914150, 1828300, 2285375, 3656600, 4570750, 9141500, 18283000]

約数ペア:

[(1, 18283000), (2, 9141500), (4, 4570750), (5, 3656600), (8, 2285375), (10, 1828300), (20, 914150), (25, 731320), (40, 457075), (47, 389000), (50, 365660), (94, 194500), (100, 182830), (125, 146264), (188, 97250), (200, 91415), (235, 77800), (250, 73132), (376, 48625), (389, 47000), (470, 38900), (500, 36566), (778, 23500), (940, 19450), (1000, 18283), (1175, 15560), (1556, 11750), (1880, 9725), (1945, 9400), (2350, 7780), (3112, 5875), (3890, 4700)]