28811000

素因数分解:

$2^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 68964480

約数和(自身を除く): 40153480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 235, 250, 376, 470, 500, 613, 940, 1000, 1175, 1226, 1880, 2350, 2452, 3065, 4700, 4904, 5875, 6130, 9400, 11750, 12260, 15325, 23500, 24520, 28811, 30650, 47000, 57622, 61300, 76625, 115244, 122600, 144055, 153250, 230488, 288110, 306500, 576220, 613000, 720275, 1152440, 1440550, 2881100, 3601375, 5762200, 7202750, 14405500, 28811000]

約数ペア:

[(1, 28811000), (2, 14405500), (4, 7202750), (5, 5762200), (8, 3601375), (10, 2881100), (20, 1440550), (25, 1152440), (40, 720275), (47, 613000), (50, 576220), (94, 306500), (100, 288110), (125, 230488), (188, 153250), (200, 144055), (235, 122600), (250, 115244), (376, 76625), (470, 61300), (500, 57622), (613, 47000), (940, 30650), (1000, 28811), (1175, 24520), (1226, 23500), (1880, 15325), (2350, 12260), (2452, 11750), (3065, 9400), (4700, 6130), (4904, 5875)]