6646940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 14636160

約数和(自身を除く): 7989220

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 131, 172, 215, 236, 262, 295, 430, 524, 590, 655, 860, 1180, 1310, 2537, 2620, 5074, 5633, 7729, 10148, 11266, 12685, 15458, 22532, 25370, 28165, 30916, 38645, 50740, 56330, 77290, 112660, 154580, 332347, 664694, 1329388, 1661735, 3323470, 6646940]

約数ペア:

[(1, 6646940), (2, 3323470), (4, 1661735), (5, 1329388), (10, 664694), (20, 332347), (43, 154580), (59, 112660), (86, 77290), (118, 56330), (131, 50740), (172, 38645), (215, 30916), (236, 28165), (262, 25370), (295, 22532), (430, 15458), (524, 12685), (590, 11266), (655, 10148), (860, 7729), (1180, 5633), (1310, 5074), (2537, 2620)]