64638720

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:239

約数の個数: 216

約数和(自身を含む): 232132992

約数和(自身を除く): 167494272

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 181, 186, 192, 240, 248, 256, 279, 288, 310, 320, 360, 362, 372, 384, 465, 480, 496, 543, 558, 576, 620, 640, 720, 724, 744, 768, 905, 930, 960, 992, 1086, 1116, 1152, 1240, 1280, 1395, 1440, 1448, 1488, 1629, 1810, 1860, 1920, 1984, 2172, 2232, 2304, 2480, 2715, 2790, 2880, 2896, 2976, 3258, 3620, 3720, 3840, 3968, 4344, 4464, 4960, 5430, 5580, 5611, 5760, 5792, 5952, 6516, 7240, 7440, 7936, 8145, 8688, 8928, 9920, 10860, 11160, 11222, 11520, 11584, 11904, 13032, 14480, 14880, 16290, 16833, 17376, 17856, 19840, 21720, 22320, 22444, 23168, 23808, 26064, 28055, 28960, 29760, 32580, 33666, 34752, 35712, 39680, 43440, 44640, 44888, 46336, 50499, 52128, 56110, 57920, 59520, 65160, 67332, 69504, 71424, 84165, 86880, 89280, 89776, 100998, 104256, 112220, 115840, 119040, 130320, 134664, 139008, 168330, 173760, 178560, 179552, 201996, 208512, 224440, 231680, 252495, 260640, 269328, 336660, 347520, 357120, 359104, 403992, 417024, 448880, 504990, 521280, 538656, 673320, 695040, 718208, 807984, 897760, 1009980, 1042560, 1077312, 1346640, 1436416, 1615968, 1795520, 2019960, 2085120, 2154624, 2693280, 3231936, 3591040, 4039920, 4309248, 5386560, 6463872, 7182080, 8079840, 10773120, 12927744, 16159680, 21546240, 32319360, 64638720]

約数ペア:

[(1, 64638720), (2, 32319360), (3, 21546240), (4, 16159680), (5, 12927744), (6, 10773120), (8, 8079840), (9, 7182080), (10, 6463872), (12, 5386560), (15, 4309248), (16, 4039920), (18, 3591040), (20, 3231936), (24, 2693280), (30, 2154624), (31, 2085120), (32, 2019960), (36, 1795520), (40, 1615968), (45, 1436416), (48, 1346640), (60, 1077312), (62, 1042560), (64, 1009980), (72, 897760), (80, 807984), (90, 718208), (93, 695040), (96, 673320), (120, 538656), (124, 521280), (128, 504990), (144, 448880), (155, 417024), (160, 403992), (180, 359104), (181, 357120), (186, 347520), (192, 336660), (240, 269328), (248, 260640), (256, 252495), (279, 231680), (288, 224440), (310, 208512), (320, 201996), (360, 179552), (362, 178560), (372, 173760), (384, 168330), (465, 139008), (480, 134664), (496, 130320), (543, 119040), (558, 115840), (576, 112220), (620, 104256), (640, 100998), (720, 89776), (724, 89280), (744, 86880), (768, 84165), (905, 71424), (930, 69504), (960, 67332), (992, 65160), (1086, 59520), (1116, 57920), (1152, 56110), (1240, 52128), (1280, 50499), (1395, 46336), (1440, 44888), (1448, 44640), (1488, 43440), (1629, 39680), (1810, 35712), (1860, 34752), (1920, 33666), (1984, 32580), (2172, 29760), (2232, 28960), (2304, 28055), (2480, 26064), (2715, 23808), (2790, 23168), (2880, 22444), (2896, 22320), (2976, 21720), (3258, 19840), (3620, 17856), (3720, 17376), (3840, 16833), (3968, 16290), (4344, 14880), (4464, 14480), (4960, 13032), (5430, 11904), (5580, 11584), (5611, 11520), (5760, 11222), (5792, 11160), (5952, 10860), (6516, 9920), (7240, 8928), (7440, 8688), (7936, 8145)]