20668495

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:774

約数の個数: 16

約数和(自身を含む): 25459200

約数和(自身を除く): 4790705

約数列:

[1, 5, 67, 103, 335, 515, 599, 2995, 6901, 34505, 40133, 61697, 200665, 308485, 4133699, 20668495]

約数ペア:

[(1, 20668495), (5, 4133699), (67, 308485), (103, 200665), (335, 61697), (515, 40133), (599, 34505), (2995, 6901)]