4970000

素因数分解:

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

素因数の和:106

約数の個数: 100

約数和(自身を含む): 13945536

約数和(自身を除く): 8975536

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, 625, 700, 710, 875, 994, 1000, 1136, 1250, 1400, 1420, 1750, 1775, 1988, 2000, 2485, 2500, 2800, 2840, 3500, 3550, 3976, 4375, 4970, 5000, 5680, 7000, 7100, 7952, 8750, 8875, 9940, 10000, 12425, 14000, 14200, 17500, 17750, 19880, 24850, 28400, 35000, 35500, 39760, 44375, 49700, 62125, 70000, 71000, 88750, 99400, 124250, 142000, 177500, 198800, 248500, 310625, 355000, 497000, 621250, 710000, 994000, 1242500, 2485000, 4970000]

約数ペア:

[(1, 4970000), (2, 2485000), (4, 1242500), (5, 994000), (7, 710000), (8, 621250), (10, 497000), (14, 355000), (16, 310625), (20, 248500), (25, 198800), (28, 177500), (35, 142000), (40, 124250), (50, 99400), (56, 88750), (70, 71000), (71, 70000), (80, 62125), (100, 49700), (112, 44375), (125, 39760), (140, 35500), (142, 35000), (175, 28400), (200, 24850), (250, 19880), (280, 17750), (284, 17500), (350, 14200), (355, 14000), (400, 12425), (497, 10000), (500, 9940), (560, 8875), (568, 8750), (625, 7952), (700, 7100), (710, 7000), (875, 5680), (994, 5000), (1000, 4970), (1136, 4375), (1250, 3976), (1400, 3550), (1420, 3500), (1750, 2840), (1775, 2800), (1988, 2500), (2000, 2485)]