20115336.000000000

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{56003}}^1$

素因数の和:56048

約数の個数: 32

約数和(自身を含む): 258066432

約数和(自身を除く): 136539922

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 56003, 112006, 280015, 392021, 560030, 784042, 1736093, 1960105, 3472186, 3920210, 8680465, 12152651, 17360930, 24305302, 60763255, 121526510]

約数ペア:

[(1, 121526510), (2, 60763255), (5, 24305302), (7, 17360930), (10, 12152651), (14, 8680465), (31, 3920210), (35, 3472186), (62, 1960105), (70, 1736093), (155, 784042), (217, 560030), (310, 392021), (434, 280015), (1085, 112006), (2170, 56003)]