7889800

素因数分解:

$2^3\times 5^2\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 18570240

約数和(自身を除く): 10680440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 103, 200, 206, 383, 412, 515, 766, 824, 1030, 1532, 1915, 2060, 2575, 3064, 3830, 4120, 5150, 7660, 9575, 10300, 15320, 19150, 20600, 38300, 39449, 76600, 78898, 157796, 197245, 315592, 394490, 788980, 986225, 1577960, 1972450, 3944900, 7889800]

約数ペア:

[(1, 7889800), (2, 3944900), (4, 1972450), (5, 1577960), (8, 986225), (10, 788980), (20, 394490), (25, 315592), (40, 197245), (50, 157796), (100, 78898), (103, 76600), (200, 39449), (206, 38300), (383, 20600), (412, 19150), (515, 15320), (766, 10300), (824, 9575), (1030, 7660), (1532, 5150), (1915, 4120), (2060, 3830), (2575, 3064)]