80269785

素因数分解:

$3^4\times 5^1\times {\mathrm{198197}}^1$

素因数の和:198214

約数の個数: 20

約数和(自身を含む): 143891748

約数和(自身を除く): 63621963

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198197, 594591, 990985, 1783773, 2972955, 5351319, 8918865, 16053957, 26756595, 80269785]

約数ペア:

[(1, 80269785), (3, 26756595), (5, 16053957), (9, 8918865), (15, 5351319), (27, 2972955), (45, 1783773), (81, 990985), (135, 594591), (405, 198197)]