66105320

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{8389}}^1$

素因数の和:8597

約数の個数: 32

約数和(自身を含む): 149509800

約数和(自身を除く): 83404480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 8389, 16778, 33556, 41945, 67112, 83890, 167780, 335560, 1652633, 3305266, 6610532, 8263165, 13221064, 16526330, 33052660, 66105320]

約数ペア:

[(1, 66105320), (2, 33052660), (4, 16526330), (5, 13221064), (8, 8263165), (10, 6610532), (20, 3305266), (40, 1652633), (197, 335560), (394, 167780), (788, 83890), (985, 67112), (1576, 41945), (1970, 33556), (3940, 16778), (7880, 8389)]