156986391195

素因数分解:

$3^4\times 5^1\times {\mathrm{387620719}}^1$

素因数の和:387620736

約数の個数: 20

約数和(自身を含む): 281412642720

約数和(自身を除く): 124426251525

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 387620719, 1162862157, 1938103595, 3488586471, 5814310785, 10465759413, 17442932355, 31397278239, 52328797065, 156986391195]

約数ペア:

[(1, 156986391195), (3, 52328797065), (5, 31397278239), (9, 17442932355), (15, 10465759413), (27, 5814310785), (45, 3488586471), (81, 1938103595), (135, 1162862157), (405, 387620719)]