388943360

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:109

約数の個数: 240

約数和(自身を含む): 1078323840

約数和(自身を除く): 689380480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 31, 32, 40, 52, 58, 62, 64, 65, 80, 104, 116, 124, 128, 130, 145, 155, 160, 169, 208, 232, 248, 256, 260, 290, 310, 320, 338, 377, 403, 416, 464, 496, 512, 520, 580, 620, 640, 676, 754, 806, 832, 845, 899, 928, 992, 1040, 1160, 1240, 1280, 1352, 1508, 1612, 1664, 1690, 1798, 1856, 1885, 1984, 2015, 2080, 2320, 2480, 2560, 2704, 3016, 3224, 3328, 3380, 3596, 3712, 3770, 3968, 4030, 4160, 4495, 4640, 4901, 4960, 5239, 5408, 6032, 6448, 6656, 6760, 7192, 7424, 7540, 7936, 8060, 8320, 8990, 9280, 9802, 9920, 10478, 10816, 11687, 12064, 12896, 13520, 14384, 14848, 15080, 15872, 16120, 16640, 17980, 18560, 19604, 19840, 20956, 21632, 23374, 24128, 24505, 25792, 26195, 27040, 28768, 30160, 32240, 33280, 35960, 37120, 39208, 39680, 41912, 43264, 46748, 48256, 49010, 51584, 52390, 54080, 57536, 58435, 60320, 64480, 71920, 74240, 78416, 79360, 83824, 86528, 93496, 96512, 98020, 103168, 104780, 108160, 115072, 116870, 120640, 128960, 143840, 151931, 156832, 167648, 186992, 193024, 196040, 206336, 209560, 216320, 230144, 233740, 241280, 257920, 287680, 303862, 313664, 335296, 373984, 392080, 419120, 432640, 460288, 467480, 482560, 515840, 575360, 607724, 627328, 670592, 747968, 759655, 784160, 838240, 934960, 965120, 1031680, 1150720, 1215448, 1254656, 1341184, 1495936, 1519310, 1568320, 1676480, 1869920, 2301440, 2430896, 2509312, 2682368, 2991872, 3038620, 3136640, 3352960, 3739840, 4861792, 5983744, 6077240, 6273280, 6705920, 7479680, 9723584, 12154480, 12546560, 13411840, 14959360, 19447168, 24308960, 29918720, 38894336, 48617920, 77788672, 97235840, 194471680, 388943360]

約数ペア:

[(1, 388943360), (2, 194471680), (4, 97235840), (5, 77788672), (8, 48617920), (10, 38894336), (13, 29918720), (16, 24308960), (20, 19447168), (26, 14959360), (29, 13411840), (31, 12546560), (32, 12154480), (40, 9723584), (52, 7479680), (58, 6705920), (62, 6273280), (64, 6077240), (65, 5983744), (80, 4861792), (104, 3739840), (116, 3352960), (124, 3136640), (128, 3038620), (130, 2991872), (145, 2682368), (155, 2509312), (160, 2430896), (169, 2301440), (208, 1869920), (232, 1676480), (248, 1568320), (256, 1519310), (260, 1495936), (290, 1341184), (310, 1254656), (320, 1215448), (338, 1150720), (377, 1031680), (403, 965120), (416, 934960), (464, 838240), (496, 784160), (512, 759655), (520, 747968), (580, 670592), (620, 627328), (640, 607724), (676, 575360), (754, 515840), (806, 482560), (832, 467480), (845, 460288), (899, 432640), (928, 419120), (992, 392080), (1040, 373984), (1160, 335296), (1240, 313664), (1280, 303862), (1352, 287680), (1508, 257920), (1612, 241280), (1664, 233740), (1690, 230144), (1798, 216320), (1856, 209560), (1885, 206336), (1984, 196040), (2015, 193024), (2080, 186992), (2320, 167648), (2480, 156832), (2560, 151931), (2704, 143840), (3016, 128960), (3224, 120640), (3328, 116870), (3380, 115072), (3596, 108160), (3712, 104780), (3770, 103168), (3968, 98020), (4030, 96512), (4160, 93496), (4495, 86528), (4640, 83824), (4901, 79360), (4960, 78416), (5239, 74240), (5408, 71920), (6032, 64480), (6448, 60320), (6656, 58435), (6760, 57536), (7192, 54080), (7424, 52390), (7540, 51584), (7936, 49010), (8060, 48256), (8320, 46748), (8990, 43264), (9280, 41912), (9802, 39680), (9920, 39208), (10478, 37120), (10816, 35960), (11687, 33280), (12064, 32240), (12896, 30160), (13520, 28768), (14384, 27040), (14848, 26195), (15080, 25792), (15872, 24505), (16120, 24128), (16640, 23374), (17980, 21632), (18560, 20956), (19604, 19840)]