890809540

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{68209}}^1$

素因数の和:68871

約数の個数: 24

約数和(自身を含む): 1873592280

約数和(自身を除く): 982782740

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 6530, 13060, 68209, 136418, 272836, 341045, 682090, 1364180, 44540477, 89080954, 178161908, 222702385, 445404770, 890809540]

約数ペア:

[(1, 890809540), (2, 445404770), (4, 222702385), (5, 178161908), (10, 89080954), (20, 44540477), (653, 1364180), (1306, 682090), (2612, 341045), (3265, 272836), (6530, 136418), (13060, 68209)]