18834440

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1283}}^1$

素因数の和:1661

約数の個数: 32

約数和(自身を含む): 42526080

約数和(自身を除く): 23691640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1283, 1468, 1835, 2566, 2936, 3670, 5132, 6415, 7340, 10264, 12830, 14680, 25660, 51320, 470861, 941722, 1883444, 2354305, 3766888, 4708610, 9417220, 18834440]

約数ペア:

[(1, 18834440), (2, 9417220), (4, 4708610), (5, 3766888), (8, 2354305), (10, 1883444), (20, 941722), (40, 470861), (367, 51320), (734, 25660), (1283, 14680), (1468, 12830), (1835, 10264), (2566, 7340), (2936, 6415), (3670, 5132)]