80921000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{4259}}^1$

素因数の和:4299

約数の個数: 64

約数和(自身を含む): 199368000

約数和(自身を除く): 118447000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1900, 2375, 3800, 4259, 4750, 8518, 9500, 17036, 19000, 21295, 34072, 42590, 80921, 85180, 106475, 161842, 170360, 212950, 323684, 404605, 425900, 532375, 647368, 809210, 851800, 1064750, 1618420, 2023025, 2129500, 3236840, 4046050, 4259000, 8092100, 10115125, 16184200, 20230250, 40460500, 80921000]

約数ペア:

[(1, 80921000), (2, 40460500), (4, 20230250), (5, 16184200), (8, 10115125), (10, 8092100), (19, 4259000), (20, 4046050), (25, 3236840), (38, 2129500), (40, 2023025), (50, 1618420), (76, 1064750), (95, 851800), (100, 809210), (125, 647368), (152, 532375), (190, 425900), (200, 404605), (250, 323684), (380, 212950), (475, 170360), (500, 161842), (760, 106475), (950, 85180), (1000, 80921), (1900, 42590), (2375, 34072), (3800, 21295), (4259, 19000), (4750, 17036), (8518, 9500)]