51974000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2035

約数の個数: 80

約数和(自身を含む): 135408000

約数和(自身を除く): 83434000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 1000, 1040, 1300, 1625, 1999, 2000, 2600, 3250, 3998, 5200, 6500, 7996, 9995, 13000, 15992, 19990, 25987, 26000, 31984, 39980, 49975, 51974, 79960, 99950, 103948, 129935, 159920, 199900, 207896, 249875, 259870, 399800, 415792, 499750, 519740, 649675, 799600, 999500, 1039480, 1299350, 1999000, 2078960, 2598700, 3248375, 3998000, 5197400, 6496750, 10394800, 12993500, 25987000, 51974000]

約数ペア:

[(1, 51974000), (2, 25987000), (4, 12993500), (5, 10394800), (8, 6496750), (10, 5197400), (13, 3998000), (16, 3248375), (20, 2598700), (25, 2078960), (26, 1999000), (40, 1299350), (50, 1039480), (52, 999500), (65, 799600), (80, 649675), (100, 519740), (104, 499750), (125, 415792), (130, 399800), (200, 259870), (208, 249875), (250, 207896), (260, 199900), (325, 159920), (400, 129935), (500, 103948), (520, 99950), (650, 79960), (1000, 51974), (1040, 49975), (1300, 39980), (1625, 31984), (1999, 26000), (2000, 25987), (2600, 19990), (3250, 15992), (3998, 13000), (5200, 9995), (6500, 7996)]