12280815

素因数分解:

$3^4\times 5^1\times {\mathrm{30323}}^1$

素因数の和:30340

約数の個数: 20

約数和(自身を含む): 22015224

約数和(自身を除く): 9734409

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 30323, 90969, 151615, 272907, 454845, 818721, 1364535, 2456163, 4093605, 12280815]

約数ペア:

[(1, 12280815), (3, 4093605), (5, 2456163), (9, 1364535), (15, 818721), (27, 454845), (45, 272907), (81, 151615), (135, 90969), (405, 30323)]