66861904

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:827

約数の個数: 40

約数和(自身を含む): 133617440

約数和(自身を除く): 66755536

約数列:

[1, 2, 4, 8, 16, 43, 86, 157, 172, 314, 344, 619, 628, 688, 1238, 1256, 2476, 2512, 4952, 6751, 9904, 13502, 26617, 27004, 53234, 54008, 97183, 106468, 108016, 194366, 212936, 388732, 425872, 777464, 1554928, 4178869, 8357738, 16715476, 33430952, 66861904]

約数ペア:

[(1, 66861904), (2, 33430952), (4, 16715476), (8, 8357738), (16, 4178869), (43, 1554928), (86, 777464), (157, 425872), (172, 388732), (314, 212936), (344, 194366), (619, 108016), (628, 106468), (688, 97183), (1238, 54008), (1256, 53234), (2476, 27004), (2512, 26617), (4952, 13502), (6751, 9904)]