6487000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 16380000

約数和(自身を除く): 9893000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 499, 500, 520, 650, 998, 1000, 1300, 1625, 1996, 2495, 2600, 3250, 3992, 4990, 6487, 6500, 9980, 12475, 12974, 13000, 19960, 24950, 25948, 32435, 49900, 51896, 62375, 64870, 99800, 124750, 129740, 162175, 249500, 259480, 324350, 499000, 648700, 810875, 1297400, 1621750, 3243500, 6487000]

約数ペア:

[(1, 6487000), (2, 3243500), (4, 1621750), (5, 1297400), (8, 810875), (10, 648700), (13, 499000), (20, 324350), (25, 259480), (26, 249500), (40, 162175), (50, 129740), (52, 124750), (65, 99800), (100, 64870), (104, 62375), (125, 51896), (130, 49900), (200, 32435), (250, 25948), (260, 24950), (325, 19960), (499, 13000), (500, 12974), (520, 12475), (650, 9980), (998, 6500), (1000, 6487), (1300, 4990), (1625, 3992), (1996, 3250), (2495, 2600)]