78829640

素因数分解:

$2^3\times 5^1\times {\mathrm{827}}^1\times {\mathrm{2383}}^1$

素因数の和:3221

約数の個数: 32

約数和(自身を含む): 177655680

約数和(自身を除く): 98826040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 827, 1654, 2383, 3308, 4135, 4766, 6616, 8270, 9532, 11915, 16540, 19064, 23830, 33080, 47660, 95320, 1970741, 3941482, 7882964, 9853705, 15765928, 19707410, 39414820, 78829640]

約数ペア:

[(1, 78829640), (2, 39414820), (4, 19707410), (5, 15765928), (8, 9853705), (10, 7882964), (20, 3941482), (40, 1970741), (827, 95320), (1654, 47660), (2383, 33080), (3308, 23830), (4135, 19064), (4766, 16540), (6616, 11915), (8270, 9532)]