78788560

素因数分解:

$2^4\times 5^1\times {\mathrm{757}}^1\times {\mathrm{1301}}^1$

素因数の和:2071

約数の個数: 40

約数和(自身を含む): 183566376

約数和(自身を除く): 104777816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 757, 1301, 1514, 2602, 3028, 3785, 5204, 6056, 6505, 7570, 10408, 12112, 13010, 15140, 20816, 26020, 30280, 52040, 60560, 104080, 984857, 1969714, 3939428, 4924285, 7878856, 9848570, 15757712, 19697140, 39394280, 78788560]

約数ペア:

[(1, 78788560), (2, 39394280), (4, 19697140), (5, 15757712), (8, 9848570), (10, 7878856), (16, 4924285), (20, 3939428), (40, 1969714), (80, 984857), (757, 104080), (1301, 60560), (1514, 52040), (2602, 30280), (3028, 26020), (3785, 20816), (5204, 15140), (6056, 13010), (6505, 12112), (7570, 10408)]