994000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{71}}^1$

素因数の和:101

約数の個数: 80

約数和(自身を含む): 2785536

約数和(自身を除く): 1791536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 80, 100, 112, 125, 140, 142, 175, 200, 250, 280, 284, 350, 355, 400, 497, 500, 560, 568, 700, 710, 875, 994, 1000, 1136, 1400, 1420, 1750, 1775, 1988, 2000, 2485, 2800, 2840, 3500, 3550, 3976, 4970, 5680, 7000, 7100, 7952, 8875, 9940, 12425, 14000, 14200, 17750, 19880, 24850, 28400, 35500, 39760, 49700, 62125, 71000, 99400, 124250, 142000, 198800, 248500, 497000, 994000]

約数ペア:

[(1, 994000), (2, 497000), (4, 248500), (5, 198800), (7, 142000), (8, 124250), (10, 99400), (14, 71000), (16, 62125), (20, 49700), (25, 39760), (28, 35500), (35, 28400), (40, 24850), (50, 19880), (56, 17750), (70, 14200), (71, 14000), (80, 12425), (100, 9940), (112, 8875), (125, 7952), (140, 7100), (142, 7000), (175, 5680), (200, 4970), (250, 3976), (280, 3550), (284, 3500), (350, 2840), (355, 2800), (400, 2485), (497, 2000), (500, 1988), (560, 1775), (568, 1750), (700, 1420), (710, 1400), (875, 1136), (994, 1000)]