261940000

素因数分解:

$2^5\times 5^4\times 7^1\times {\mathrm{1871}}^1$

素因数の和:1908

約数の個数: 120

約数和(自身を含む): 736864128

約数和(自身を除く): 474924128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 350, 400, 500, 560, 625, 700, 800, 875, 1000, 1120, 1250, 1400, 1750, 1871, 2000, 2500, 2800, 3500, 3742, 4000, 4375, 5000, 5600, 7000, 7484, 8750, 9355, 10000, 13097, 14000, 14968, 17500, 18710, 20000, 26194, 28000, 29936, 35000, 37420, 46775, 52388, 59872, 65485, 70000, 74840, 93550, 104776, 130970, 140000, 149680, 187100, 209552, 233875, 261940, 299360, 327425, 374200, 419104, 467750, 523880, 654850, 748400, 935500, 1047760, 1169375, 1309700, 1496800, 1637125, 1871000, 2095520, 2338750, 2619400, 3274250, 3742000, 4677500, 5238800, 6548500, 7484000, 8185625, 9355000, 10477600, 13097000, 16371250, 18710000, 26194000, 32742500, 37420000, 52388000, 65485000, 130970000, 261940000]

約数ペア:

[(1, 261940000), (2, 130970000), (4, 65485000), (5, 52388000), (7, 37420000), (8, 32742500), (10, 26194000), (14, 18710000), (16, 16371250), (20, 13097000), (25, 10477600), (28, 9355000), (32, 8185625), (35, 7484000), (40, 6548500), (50, 5238800), (56, 4677500), (70, 3742000), (80, 3274250), (100, 2619400), (112, 2338750), (125, 2095520), (140, 1871000), (160, 1637125), (175, 1496800), (200, 1309700), (224, 1169375), (250, 1047760), (280, 935500), (350, 748400), (400, 654850), (500, 523880), (560, 467750), (625, 419104), (700, 374200), (800, 327425), (875, 299360), (1000, 261940), (1120, 233875), (1250, 209552), (1400, 187100), (1750, 149680), (1871, 140000), (2000, 130970), (2500, 104776), (2800, 93550), (3500, 74840), (3742, 70000), (4000, 65485), (4375, 59872), (5000, 52388), (5600, 46775), (7000, 37420), (7484, 35000), (8750, 29936), (9355, 28000), (10000, 26194), (13097, 20000), (14000, 18710), (14968, 17500)]