28209820

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{9341}}^1$

素因数の和:9501

約数の個数: 24

約数和(自身を含む): 59639328

約数和(自身を除く): 31429508

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 9341, 18682, 37364, 46705, 93410, 186820, 1410491, 2820982, 5641964, 7052455, 14104910, 28209820]

約数ペア:

[(1, 28209820), (2, 14104910), (4, 7052455), (5, 5641964), (10, 2820982), (20, 1410491), (151, 186820), (302, 93410), (604, 46705), (755, 37364), (1510, 18682), (3020, 9341)]