12904340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15737}}^1$

素因数の和:15787

約数の個数: 24

約数和(自身を含む): 27761832

約数和(自身を除く): 14857492

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15737, 31474, 62948, 78685, 157370, 314740, 645217, 1290434, 2580868, 3226085, 6452170, 12904340]

約数ペア:

[(1, 12904340), (2, 6452170), (4, 3226085), (5, 2580868), (10, 1290434), (20, 645217), (41, 314740), (82, 157370), (164, 78685), (205, 62948), (410, 31474), (820, 15737)]