67680020

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{14159}}^1$

素因数の和:14407

約数の個数: 24

約数和(自身を含む): 142732800

約数和(自身を除く): 75052780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 14159, 28318, 56636, 70795, 141590, 283180, 3384001, 6768002, 13536004, 16920005, 33840010, 67680020]

約数ペア:

[(1, 67680020), (2, 33840010), (4, 16920005), (5, 13536004), (10, 6768002), (20, 3384001), (239, 283180), (478, 141590), (956, 70795), (1195, 56636), (2390, 28318), (4780, 14159)]