497000

素因数分解:

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

素因数の和:99

約数の個数: 64

約数和(自身を含む): 1347840

約数和(自身を除く): 850840

約数列:

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

約数ペア:

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