81712000

素因数分解:

$2^7\times 5^3\times {\mathrm{5107}}^1$

素因数の和:5136

約数の個数: 64

約数和(自身を含む): 203196240

約数和(自身を除く): 121484240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1600, 2000, 3200, 4000, 5107, 8000, 10214, 16000, 20428, 25535, 40856, 51070, 81712, 102140, 127675, 163424, 204280, 255350, 326848, 408560, 510700, 638375, 653696, 817120, 1021400, 1276750, 1634240, 2042800, 2553500, 3268480, 4085600, 5107000, 8171200, 10214000, 16342400, 20428000, 40856000, 81712000]

約数ペア:

[(1, 81712000), (2, 40856000), (4, 20428000), (5, 16342400), (8, 10214000), (10, 8171200), (16, 5107000), (20, 4085600), (25, 3268480), (32, 2553500), (40, 2042800), (50, 1634240), (64, 1276750), (80, 1021400), (100, 817120), (125, 653696), (128, 638375), (160, 510700), (200, 408560), (250, 326848), (320, 255350), (400, 204280), (500, 163424), (640, 127675), (800, 102140), (1000, 81712), (1600, 51070), (2000, 40856), (3200, 25535), (4000, 20428), (5107, 16000), (8000, 10214)]