80260065

素因数分解:

$3^4\times 5^1\times {\mathrm{198173}}^1$

素因数の和:198190

約数の個数: 20

約数和(自身を含む): 143874324

約数和(自身を除く): 63614259

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198173, 594519, 990865, 1783557, 2972595, 5350671, 8917785, 16052013, 26753355, 80260065]

約数ペア:

[(1, 80260065), (3, 26753355), (5, 16052013), (9, 8917785), (15, 5350671), (27, 2972595), (45, 1783557), (81, 990865), (135, 594519), (405, 198173)]