8471000

素因数分解:

$2^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 20386080

約数和(自身を除く): 11915080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 197, 200, 215, 250, 344, 394, 430, 500, 788, 860, 985, 1000, 1075, 1576, 1720, 1970, 2150, 3940, 4300, 4925, 5375, 7880, 8471, 8600, 9850, 10750, 16942, 19700, 21500, 24625, 33884, 39400, 42355, 43000, 49250, 67768, 84710, 98500, 169420, 197000, 211775, 338840, 423550, 847100, 1058875, 1694200, 2117750, 4235500, 8471000]

約数ペア:

[(1, 8471000), (2, 4235500), (4, 2117750), (5, 1694200), (8, 1058875), (10, 847100), (20, 423550), (25, 338840), (40, 211775), (43, 197000), (50, 169420), (86, 98500), (100, 84710), (125, 67768), (172, 49250), (197, 43000), (200, 42355), (215, 39400), (250, 33884), (344, 24625), (394, 21500), (430, 19700), (500, 16942), (788, 10750), (860, 9850), (985, 8600), (1000, 8471), (1075, 7880), (1576, 5375), (1720, 4925), (1970, 4300), (2150, 3940)]