68939920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 184238208

約数和(自身を除く): 115298288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 307, 401, 560, 614, 802, 1228, 1535, 1604, 2005, 2149, 2456, 2807, 3070, 3208, 4010, 4298, 4912, 5614, 6140, 6416, 8020, 8596, 10745, 11228, 12280, 14035, 16040, 17192, 21490, 22456, 24560, 28070, 32080, 34384, 42980, 44912, 56140, 85960, 112280, 123107, 171920, 224560, 246214, 492428, 615535, 861749, 984856, 1231070, 1723498, 1969712, 2462140, 3446996, 4308745, 4924280, 6893992, 8617490, 9848560, 13787984, 17234980, 34469960, 68939920]

約数ペア:

[(1, 68939920), (2, 34469960), (4, 17234980), (5, 13787984), (7, 9848560), (8, 8617490), (10, 6893992), (14, 4924280), (16, 4308745), (20, 3446996), (28, 2462140), (35, 1969712), (40, 1723498), (56, 1231070), (70, 984856), (80, 861749), (112, 615535), (140, 492428), (280, 246214), (307, 224560), (401, 171920), (560, 123107), (614, 112280), (802, 85960), (1228, 56140), (1535, 44912), (1604, 42980), (2005, 34384), (2149, 32080), (2456, 28070), (2807, 24560), (3070, 22456), (3208, 21490), (4010, 17192), (4298, 16040), (4912, 14035), (5614, 12280), (6140, 11228), (6416, 10745), (8020, 8596)]