66856976

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{68501}}^1$

素因数の和:68570

約数の個数: 20

約数和(自身を含む): 131660844

約数和(自身を除く): 64803868

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 68501, 137002, 274004, 548008, 1096016, 4178561, 8357122, 16714244, 33428488, 66856976]

約数ペア:

[(1, 66856976), (2, 33428488), (4, 16714244), (8, 8357122), (16, 4178561), (61, 1096016), (122, 548008), (244, 274004), (488, 137002), (976, 68501)]