12493220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 27350400

約数和(自身を除く): 14857180

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 199, 215, 292, 365, 398, 430, 730, 796, 860, 995, 1460, 1990, 3139, 3980, 6278, 8557, 12556, 14527, 15695, 17114, 29054, 31390, 34228, 42785, 58108, 62780, 72635, 85570, 145270, 171140, 290540, 624661, 1249322, 2498644, 3123305, 6246610, 12493220]

約数ペア:

[(1, 12493220), (2, 6246610), (4, 3123305), (5, 2498644), (10, 1249322), (20, 624661), (43, 290540), (73, 171140), (86, 145270), (146, 85570), (172, 72635), (199, 62780), (215, 58108), (292, 42785), (365, 34228), (398, 31390), (430, 29054), (730, 17114), (796, 15695), (860, 14527), (995, 12556), (1460, 8557), (1990, 6278), (3139, 3980)]