3948020

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{643}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 8330784

約数和(自身を除く): 4382764

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 643, 1228, 1286, 1535, 2572, 3070, 3215, 6140, 6430, 12860, 197401, 394802, 789604, 987005, 1974010, 3948020]

約数ペア:

[(1, 3948020), (2, 1974010), (4, 987005), (5, 789604), (10, 394802), (20, 197401), (307, 12860), (614, 6430), (643, 6140), (1228, 3215), (1286, 3070), (1535, 2572)]