42980000

素因数分解:

$2^5\times 5^4\times 7^1\times {\mathrm{307}}^1$

素因数の和:344

約数の個数: 120

約数和(自身を含む): 121236192

約数和(自身を除く): 78256192

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, 307, 350, 400, 500, 560, 614, 625, 700, 800, 875, 1000, 1120, 1228, 1250, 1400, 1535, 1750, 2000, 2149, 2456, 2500, 2800, 3070, 3500, 4000, 4298, 4375, 4912, 5000, 5600, 6140, 7000, 7675, 8596, 8750, 9824, 10000, 10745, 12280, 14000, 15350, 17192, 17500, 20000, 21490, 24560, 28000, 30700, 34384, 35000, 38375, 42980, 49120, 53725, 61400, 68768, 70000, 76750, 85960, 107450, 122800, 140000, 153500, 171920, 191875, 214900, 245600, 268625, 307000, 343840, 383750, 429800, 537250, 614000, 767500, 859600, 1074500, 1228000, 1343125, 1535000, 1719200, 2149000, 2686250, 3070000, 4298000, 5372500, 6140000, 8596000, 10745000, 21490000, 42980000]

約数ペア:

[(1, 42980000), (2, 21490000), (4, 10745000), (5, 8596000), (7, 6140000), (8, 5372500), (10, 4298000), (14, 3070000), (16, 2686250), (20, 2149000), (25, 1719200), (28, 1535000), (32, 1343125), (35, 1228000), (40, 1074500), (50, 859600), (56, 767500), (70, 614000), (80, 537250), (100, 429800), (112, 383750), (125, 343840), (140, 307000), (160, 268625), (175, 245600), (200, 214900), (224, 191875), (250, 171920), (280, 153500), (307, 140000), (350, 122800), (400, 107450), (500, 85960), (560, 76750), (614, 70000), (625, 68768), (700, 61400), (800, 53725), (875, 49120), (1000, 42980), (1120, 38375), (1228, 35000), (1250, 34384), (1400, 30700), (1535, 28000), (1750, 24560), (2000, 21490), (2149, 20000), (2456, 17500), (2500, 17192), (2800, 15350), (3070, 14000), (3500, 12280), (4000, 10745), (4298, 10000), (4375, 9824), (4912, 8750), (5000, 8596), (5600, 7675), (6140, 7000)]