80481195

素因数分解:

$3^4\times 5^1\times {\mathrm{198719}}^1$

素因数の和:198736

約数の個数: 20

約数和(自身を含む): 144270720

約数和(自身を除く): 63789525

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198719, 596157, 993595, 1788471, 2980785, 5365413, 8942355, 16096239, 26827065, 80481195]

約数ペア:

[(1, 80481195), (3, 26827065), (5, 16096239), (9, 8942355), (15, 5365413), (27, 2980785), (45, 1788471), (81, 993595), (135, 596157), (405, 198719)]