12856984520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{131}}^1\times {\mathrm{1327}}^1$

素因数の和:1555

約数の個数: 96

約数和(自身を含む): 29865179520

約数和(自身を除く): 17008195000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 131, 172, 215, 262, 344, 430, 524, 655, 860, 1048, 1310, 1327, 1720, 1849, 2620, 2654, 3698, 5240, 5308, 5633, 6635, 7396, 9245, 10616, 11266, 13270, 14792, 18490, 22532, 26540, 28165, 36980, 45064, 53080, 56330, 57061, 73960, 112660, 114122, 173837, 225320, 228244, 242219, 285305, 347674, 456488, 484438, 570610, 695348, 869185, 968876, 1141220, 1211095, 1390696, 1738370, 1937752, 2282440, 2422190, 2453623, 3476740, 4844380, 4907246, 6953480, 7474991, 9688760, 9814492, 12268115, 14949982, 19628984, 24536230, 29899964, 37374955, 49072460, 59799928, 74749910, 98144920, 149499820, 298999640, 321424613, 642849226, 1285698452, 1607123065, 2571396904, 3214246130, 6428492260, 12856984520]

約数ペア:

[(1, 12856984520), (2, 6428492260), (4, 3214246130), (5, 2571396904), (8, 1607123065), (10, 1285698452), (20, 642849226), (40, 321424613), (43, 298999640), (86, 149499820), (131, 98144920), (172, 74749910), (215, 59799928), (262, 49072460), (344, 37374955), (430, 29899964), (524, 24536230), (655, 19628984), (860, 14949982), (1048, 12268115), (1310, 9814492), (1327, 9688760), (1720, 7474991), (1849, 6953480), (2620, 4907246), (2654, 4844380), (3698, 3476740), (5240, 2453623), (5308, 2422190), (5633, 2282440), (6635, 1937752), (7396, 1738370), (9245, 1390696), (10616, 1211095), (11266, 1141220), (13270, 968876), (14792, 869185), (18490, 695348), (22532, 570610), (26540, 484438), (28165, 456488), (36980, 347674), (45064, 285305), (53080, 242219), (56330, 228244), (57061, 225320), (73960, 173837), (112660, 114122)]