12291280

素因数分解:

$2^4\times 5^1\times {\mathrm{153641}}^1$

素因数の和:153654

約数の個数: 20

約数和(自身を含む): 28577412

約数和(自身を除く): 16286132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 153641, 307282, 614564, 768205, 1229128, 1536410, 2458256, 3072820, 6145640, 12291280]

約数ペア:

[(1, 12291280), (2, 6145640), (4, 3072820), (5, 2458256), (8, 1536410), (10, 1229128), (16, 768205), (20, 614564), (40, 307282), (80, 153641)]