129754280

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{6373}}^1$

素因数の和:6893

約数の個数: 32

約数和(自身を含む): 292566600

約数和(自身を除く): 162812320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 6373, 10180, 12746, 20360, 25492, 31865, 50984, 63730, 127460, 254920, 3243857, 6487714, 12975428, 16219285, 25950856, 32438570, 64877140, 129754280]

約数ペア:

[(1, 129754280), (2, 64877140), (4, 32438570), (5, 25950856), (8, 16219285), (10, 12975428), (20, 6487714), (40, 3243857), (509, 254920), (1018, 127460), (2036, 63730), (2545, 50984), (4072, 31865), (5090, 25492), (6373, 20360), (10180, 12746)]