20121557768

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{1307}}^1$

素因数の和:1591

約数の個数: 96

約数和(自身を含む): 41792954400

約数和(自身を除く): 21671396632

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 169, 193, 236, 338, 386, 472, 676, 767, 772, 1307, 1352, 1534, 1544, 2509, 2614, 3068, 5018, 5228, 6136, 9971, 10036, 10456, 11387, 16991, 19942, 20072, 22774, 32617, 33982, 39884, 45548, 65234, 67964, 77113, 79768, 91096, 130468, 135928, 148031, 154226, 220883, 252251, 260936, 296062, 308452, 441766, 504502, 592124, 616904, 883532, 1002469, 1009004, 1184248, 1767064, 1924403, 2004938, 2018008, 3279263, 3848806, 4009876, 6558526, 7697612, 8019752, 13032097, 13117052, 14882809, 15395224, 26064194, 26234104, 29765618, 42630419, 52128388, 59531236, 85260838, 104256776, 119062472, 170521676, 193476517, 341043352, 386953034, 773906068, 1547812136, 2515194721, 5030389442, 10060778884, 20121557768]

約数ペア:

[(1, 20121557768), (2, 10060778884), (4, 5030389442), (8, 2515194721), (13, 1547812136), (26, 773906068), (52, 386953034), (59, 341043352), (104, 193476517), (118, 170521676), (169, 119062472), (193, 104256776), (236, 85260838), (338, 59531236), (386, 52128388), (472, 42630419), (676, 29765618), (767, 26234104), (772, 26064194), (1307, 15395224), (1352, 14882809), (1534, 13117052), (1544, 13032097), (2509, 8019752), (2614, 7697612), (3068, 6558526), (5018, 4009876), (5228, 3848806), (6136, 3279263), (9971, 2018008), (10036, 2004938), (10456, 1924403), (11387, 1767064), (16991, 1184248), (19942, 1009004), (20072, 1002469), (22774, 883532), (32617, 616904), (33982, 592124), (39884, 504502), (45548, 441766), (65234, 308452), (67964, 296062), (77113, 260936), (79768, 252251), (91096, 220883), (130468, 154226), (135928, 148031)]