66556540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{32309}}^1$

素因数の和:32421

約数の個数: 24

約数和(自身を含む): 141130080

約数和(自身を除く): 74573540

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 32309, 64618, 129236, 161545, 323090, 646180, 3327827, 6655654, 13311308, 16639135, 33278270, 66556540]

約数ペア:

[(1, 66556540), (2, 33278270), (4, 16639135), (5, 13311308), (10, 6655654), (20, 3327827), (103, 646180), (206, 323090), (412, 161545), (515, 129236), (1030, 64618), (2060, 32309)]