817120000

素因数分解:

$2^8\times 5^4\times {\mathrm{5107}}^1$

素因数の和:5143

約数の個数: 90

約数和(自身を含む): 2038556828

約数和(自身を除く): 1221436828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 625, 640, 800, 1000, 1250, 1280, 1600, 2000, 2500, 3200, 4000, 5000, 5107, 6400, 8000, 10000, 10214, 16000, 20000, 20428, 25535, 32000, 40000, 40856, 51070, 80000, 81712, 102140, 127675, 160000, 163424, 204280, 255350, 326848, 408560, 510700, 638375, 653696, 817120, 1021400, 1276750, 1307392, 1634240, 2042800, 2553500, 3191875, 3268480, 4085600, 5107000, 6383750, 6536960, 8171200, 10214000, 12767500, 16342400, 20428000, 25535000, 32684800, 40856000, 51070000, 81712000, 102140000, 163424000, 204280000, 408560000, 817120000]

約数ペア:

[(1, 817120000), (2, 408560000), (4, 204280000), (5, 163424000), (8, 102140000), (10, 81712000), (16, 51070000), (20, 40856000), (25, 32684800), (32, 25535000), (40, 20428000), (50, 16342400), (64, 12767500), (80, 10214000), (100, 8171200), (125, 6536960), (128, 6383750), (160, 5107000), (200, 4085600), (250, 3268480), (256, 3191875), (320, 2553500), (400, 2042800), (500, 1634240), (625, 1307392), (640, 1276750), (800, 1021400), (1000, 817120), (1250, 653696), (1280, 638375), (1600, 510700), (2000, 408560), (2500, 326848), (3200, 255350), (4000, 204280), (5000, 163424), (5107, 160000), (6400, 127675), (8000, 102140), (10000, 81712), (10214, 80000), (16000, 51070), (20000, 40856), (20428, 40000), (25535, 32000)]