720647680

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:640

約数の個数: 160

約数和(自身を含む): 1895905440

約数和(自身を除く): 1175257760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 116, 128, 136, 145, 160, 170, 232, 256, 272, 290, 320, 340, 464, 493, 512, 544, 571, 580, 640, 680, 928, 986, 1088, 1142, 1160, 1280, 1360, 1856, 1972, 2176, 2284, 2320, 2465, 2560, 2720, 2855, 3712, 3944, 4352, 4568, 4640, 4930, 5440, 5710, 7424, 7888, 8704, 9136, 9280, 9707, 9860, 10880, 11420, 14848, 15776, 16559, 18272, 18560, 19414, 19720, 21760, 22840, 31552, 33118, 36544, 37120, 38828, 39440, 43520, 45680, 48535, 63104, 66236, 73088, 74240, 77656, 78880, 82795, 91360, 97070, 126208, 132472, 146176, 155312, 157760, 165590, 182720, 194140, 252416, 264944, 281503, 292352, 310624, 315520, 331180, 365440, 388280, 529888, 563006, 621248, 631040, 662360, 730880, 776560, 1059776, 1126012, 1242496, 1262080, 1324720, 1407515, 1461760, 1553120, 2119552, 2252024, 2484992, 2649440, 2815030, 3106240, 4239104, 4504048, 4969984, 5298880, 5630060, 6212480, 8478208, 9008096, 10597760, 11260120, 12424960, 18016192, 21195520, 22520240, 24849920, 36032384, 42391040, 45040480, 72064768, 90080960, 144129536, 180161920, 360323840, 720647680]

約数ペア:

[(1, 720647680), (2, 360323840), (4, 180161920), (5, 144129536), (8, 90080960), (10, 72064768), (16, 45040480), (17, 42391040), (20, 36032384), (29, 24849920), (32, 22520240), (34, 21195520), (40, 18016192), (58, 12424960), (64, 11260120), (68, 10597760), (80, 9008096), (85, 8478208), (116, 6212480), (128, 5630060), (136, 5298880), (145, 4969984), (160, 4504048), (170, 4239104), (232, 3106240), (256, 2815030), (272, 2649440), (290, 2484992), (320, 2252024), (340, 2119552), (464, 1553120), (493, 1461760), (512, 1407515), (544, 1324720), (571, 1262080), (580, 1242496), (640, 1126012), (680, 1059776), (928, 776560), (986, 730880), (1088, 662360), (1142, 631040), (1160, 621248), (1280, 563006), (1360, 529888), (1856, 388280), (1972, 365440), (2176, 331180), (2284, 315520), (2320, 310624), (2465, 292352), (2560, 281503), (2720, 264944), (2855, 252416), (3712, 194140), (3944, 182720), (4352, 165590), (4568, 157760), (4640, 155312), (4930, 146176), (5440, 132472), (5710, 126208), (7424, 97070), (7888, 91360), (8704, 82795), (9136, 78880), (9280, 77656), (9707, 74240), (9860, 73088), (10880, 66236), (11420, 63104), (14848, 48535), (15776, 45680), (16559, 43520), (18272, 39440), (18560, 38828), (19414, 37120), (19720, 36544), (21760, 33118), (22840, 31552)]