2721637240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1\times {\mathrm{587}}^1$

素因数の和:1205

約数の個数: 128

約数和(自身を含む): 7264857600

約数和(自身を除く): 4543220360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 571, 580, 587, 812, 1015, 1142, 1160, 1174, 1624, 2030, 2284, 2348, 2855, 2935, 3997, 4060, 4109, 4568, 4696, 5710, 5870, 7994, 8120, 8218, 11420, 11740, 15988, 16436, 16559, 17023, 19985, 20545, 22840, 23480, 31976, 32872, 33118, 34046, 39970, 41090, 66236, 68092, 79940, 82180, 82795, 85115, 115913, 119161, 132472, 136184, 159880, 164360, 165590, 170230, 231826, 238322, 331180, 335177, 340460, 463652, 476644, 579565, 595805, 662360, 670354, 680920, 927304, 953288, 1159130, 1191610, 1340708, 1675885, 2318260, 2346239, 2383220, 2681416, 3351770, 4636520, 4692478, 4766440, 6703540, 9384956, 9720133, 11731195, 13407080, 18769912, 19440266, 23462390, 38880532, 46924780, 48600665, 68040931, 77761064, 93849560, 97201330, 136081862, 194402660, 272163724, 340204655, 388805320, 544327448, 680409310, 1360818620, 2721637240]

約数ペア:

[(1, 2721637240), (2, 1360818620), (4, 680409310), (5, 544327448), (7, 388805320), (8, 340204655), (10, 272163724), (14, 194402660), (20, 136081862), (28, 97201330), (29, 93849560), (35, 77761064), (40, 68040931), (56, 48600665), (58, 46924780), (70, 38880532), (116, 23462390), (140, 19440266), (145, 18769912), (203, 13407080), (232, 11731195), (280, 9720133), (290, 9384956), (406, 6703540), (571, 4766440), (580, 4692478), (587, 4636520), (812, 3351770), (1015, 2681416), (1142, 2383220), (1160, 2346239), (1174, 2318260), (1624, 1675885), (2030, 1340708), (2284, 1191610), (2348, 1159130), (2855, 953288), (2935, 927304), (3997, 680920), (4060, 670354), (4109, 662360), (4568, 595805), (4696, 579565), (5710, 476644), (5870, 463652), (7994, 340460), (8120, 335177), (8218, 331180), (11420, 238322), (11740, 231826), (15988, 170230), (16436, 165590), (16559, 164360), (17023, 159880), (19985, 136184), (20545, 132472), (22840, 119161), (23480, 115913), (31976, 85115), (32872, 82795), (33118, 82180), (34046, 79940), (39970, 68092), (41090, 66236)]