644720640

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:738

約数の個数: 192

約数和(自身を含む): 2132282880

約数和(自身を除く): 1487562240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 512, 620, 640, 677, 744, 768, 930, 960, 992, 1024, 1240, 1280, 1354, 1488, 1536, 1860, 1920, 1984, 2031, 2048, 2480, 2560, 2708, 2976, 3072, 3385, 3720, 3840, 3968, 4062, 4960, 5120, 5416, 5952, 6144, 6770, 7440, 7680, 7936, 8124, 9920, 10155, 10240, 10832, 11904, 13540, 14880, 15360, 15872, 16248, 19840, 20310, 20987, 21664, 23808, 27080, 29760, 30720, 31744, 32496, 39680, 40620, 41974, 43328, 47616, 54160, 59520, 62961, 63488, 64992, 79360, 81240, 83948, 86656, 95232, 104935, 108320, 119040, 125922, 129984, 158720, 162480, 167896, 173312, 190464, 209870, 216640, 238080, 251844, 259968, 314805, 317440, 324960, 335792, 346624, 419740, 433280, 476160, 503688, 519936, 629610, 649920, 671584, 693248, 839480, 866560, 952320, 1007376, 1039872, 1259220, 1299840, 1343168, 1386496, 1678960, 1733120, 2014752, 2079744, 2518440, 2599680, 2686336, 3357920, 3466240, 4029504, 4159488, 5036880, 5199360, 5372672, 6715840, 6932480, 8059008, 10073760, 10398720, 10745344, 13431680, 16118016, 20147520, 20797440, 21490688, 26863360, 32236032, 40295040, 42981376, 53726720, 64472064, 80590080, 107453440, 128944128, 161180160, 214906880, 322360320, 644720640]

約数ペア:

[(1, 644720640), (2, 322360320), (3, 214906880), (4, 161180160), (5, 128944128), (6, 107453440), (8, 80590080), (10, 64472064), (12, 53726720), (15, 42981376), (16, 40295040), (20, 32236032), (24, 26863360), (30, 21490688), (31, 20797440), (32, 20147520), (40, 16118016), (48, 13431680), (60, 10745344), (62, 10398720), (64, 10073760), (80, 8059008), (93, 6932480), (96, 6715840), (120, 5372672), (124, 5199360), (128, 5036880), (155, 4159488), (160, 4029504), (186, 3466240), (192, 3357920), (240, 2686336), (248, 2599680), (256, 2518440), (310, 2079744), (320, 2014752), (372, 1733120), (384, 1678960), (465, 1386496), (480, 1343168), (496, 1299840), (512, 1259220), (620, 1039872), (640, 1007376), (677, 952320), (744, 866560), (768, 839480), (930, 693248), (960, 671584), (992, 649920), (1024, 629610), (1240, 519936), (1280, 503688), (1354, 476160), (1488, 433280), (1536, 419740), (1860, 346624), (1920, 335792), (1984, 324960), (2031, 317440), (2048, 314805), (2480, 259968), (2560, 251844), (2708, 238080), (2976, 216640), (3072, 209870), (3385, 190464), (3720, 173312), (3840, 167896), (3968, 162480), (4062, 158720), (4960, 129984), (5120, 125922), (5416, 119040), (5952, 108320), (6144, 104935), (6770, 95232), (7440, 86656), (7680, 83948), (7936, 81240), (8124, 79360), (9920, 64992), (10155, 63488), (10240, 62961), (10832, 59520), (11904, 54160), (13540, 47616), (14880, 43328), (15360, 41974), (15872, 40620), (16248, 39680), (19840, 32496), (20310, 31744), (20987, 30720), (21664, 29760), (23808, 27080)]