138308020

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{7591}}^1$

素因数の和:8511

約数の個数: 24

約数和(自身を含む): 290803968

約数和(自身を除く): 152495948

約数列:

[1, 2, 4, 5, 10, 20, 911, 1822, 3644, 4555, 7591, 9110, 15182, 18220, 30364, 37955, 75910, 151820, 6915401, 13830802, 27661604, 34577005, 69154010, 138308020]

約数ペア:

[(1, 138308020), (2, 69154010), (4, 34577005), (5, 27661604), (10, 13830802), (20, 6915401), (911, 151820), (1822, 75910), (3644, 37955), (4555, 30364), (7591, 18220), (9110, 15182)]