68357015

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 86851968

約数和(自身を除く): 18494953

約数列:

[1, 5, 31, 53, 155, 157, 265, 785, 1643, 2809, 4867, 8215, 8321, 14045, 24335, 41605, 87079, 257951, 435395, 441013, 1289755, 2205065, 13671403, 68357015]

約数ペア:

[(1, 68357015), (5, 13671403), (31, 2205065), (53, 1289755), (155, 441013), (157, 435395), (265, 257951), (785, 87079), (1643, 41605), (2809, 24335), (4867, 14045), (8215, 8321)]