201989178

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2591}}^1$

素因数の和:2731

約数の個数: 48

約数和(自身を含む): 451256832

約数和(自身を除く): 249267654

約数列:

[1, 2, 3, 6, 9, 18, 61, 71, 122, 142, 183, 213, 366, 426, 549, 639, 1098, 1278, 2591, 4331, 5182, 7773, 8662, 12993, 15546, 23319, 25986, 38979, 46638, 77958, 158051, 183961, 316102, 367922, 474153, 551883, 948306, 1103766, 1422459, 1655649, 2844918, 3311298, 11221621, 22443242, 33664863, 67329726, 100994589, 201989178]

約数ペア:

[(1, 201989178), (2, 100994589), (3, 67329726), (6, 33664863), (9, 22443242), (18, 11221621), (61, 3311298), (71, 2844918), (122, 1655649), (142, 1422459), (183, 1103766), (213, 948306), (366, 551883), (426, 474153), (549, 367922), (639, 316102), (1098, 183961), (1278, 158051), (2591, 77958), (4331, 46638), (5182, 38979), (7773, 25986), (8662, 23319), (12993, 15546)]