66738520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15307}}^1$

素因数の和:15427

約数の個数: 32

約数和(自身を含む): 151549200

約数和(自身を除く): 84810680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 15307, 30614, 61228, 76535, 122456, 153070, 306140, 612280, 1668463, 3336926, 6673852, 8342315, 13347704, 16684630, 33369260, 66738520]

約数ペア:

[(1, 66738520), (2, 33369260), (4, 16684630), (5, 13347704), (8, 8342315), (10, 6673852), (20, 3336926), (40, 1668463), (109, 612280), (218, 306140), (436, 153070), (545, 122456), (872, 76535), (1090, 61228), (2180, 30614), (4360, 15307)]