138406040

素因数分解:

$2^3\times 5^1\times {\mathrm{743}}^1\times {\mathrm{4657}}^1$

素因数の和:5411

約数の個数: 32

約数和(自身を含む): 311899680

約数和(自身を除く): 173493640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 743, 1486, 2972, 3715, 4657, 5944, 7430, 9314, 14860, 18628, 23285, 29720, 37256, 46570, 93140, 186280, 3460151, 6920302, 13840604, 17300755, 27681208, 34601510, 69203020, 138406040]

約数ペア:

[(1, 138406040), (2, 69203020), (4, 34601510), (5, 27681208), (8, 17300755), (10, 13840604), (20, 6920302), (40, 3460151), (743, 186280), (1486, 93140), (2972, 46570), (3715, 37256), (4657, 29720), (5944, 23285), (7430, 18628), (9314, 14860)]