64850680

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{5281}}^1$

素因数の和:5599

約数の個数: 32

約数和(自身を含む): 146417040

約数和(自身を除く): 81566360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 5281, 6140, 10562, 12280, 21124, 26405, 42248, 52810, 105620, 211240, 1621267, 3242534, 6485068, 8106335, 12970136, 16212670, 32425340, 64850680]

約数ペア:

[(1, 64850680), (2, 32425340), (4, 16212670), (5, 12970136), (8, 8106335), (10, 6485068), (20, 3242534), (40, 1621267), (307, 211240), (614, 105620), (1228, 52810), (1535, 42248), (2456, 26405), (3070, 21124), (5281, 12280), (6140, 10562)]