20797000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2971}}^1$

素因数の和:2999

約数の個数: 64

約数和(自身を含む): 55635840

約数和(自身を除く): 34838840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 2971, 3500, 5942, 7000, 11884, 14855, 20797, 23768, 29710, 41594, 59420, 74275, 83188, 103985, 118840, 148550, 166376, 207970, 297100, 371375, 415940, 519925, 594200, 742750, 831880, 1039850, 1485500, 2079700, 2599625, 2971000, 4159400, 5199250, 10398500, 20797000]

約数ペア:

[(1, 20797000), (2, 10398500), (4, 5199250), (5, 4159400), (7, 2971000), (8, 2599625), (10, 2079700), (14, 1485500), (20, 1039850), (25, 831880), (28, 742750), (35, 594200), (40, 519925), (50, 415940), (56, 371375), (70, 297100), (100, 207970), (125, 166376), (140, 148550), (175, 118840), (200, 103985), (250, 83188), (280, 74275), (350, 59420), (500, 41594), (700, 29710), (875, 23768), (1000, 20797), (1400, 14855), (1750, 11884), (2971, 7000), (3500, 5942)]