1980129280

素因数分解:

$2^{13}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1667}}^1$

素因数の和:1727

約数の個数: 112

約数和(自身を含む): 4918831920

約数和(自身を除く): 2938702640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 512, 580, 640, 928, 1024, 1160, 1280, 1667, 1856, 2048, 2320, 2560, 3334, 3712, 4096, 4640, 5120, 6668, 7424, 8192, 8335, 9280, 10240, 13336, 14848, 16670, 18560, 20480, 26672, 29696, 33340, 37120, 40960, 48343, 53344, 59392, 66680, 74240, 96686, 106688, 118784, 133360, 148480, 193372, 213376, 237568, 241715, 266720, 296960, 386744, 426752, 483430, 533440, 593920, 773488, 853504, 966860, 1066880, 1187840, 1546976, 1707008, 1933720, 2133760, 3093952, 3414016, 3867440, 4267520, 6187904, 6828032, 7734880, 8535040, 12375808, 13656064, 15469760, 17070080, 24751616, 30939520, 34140160, 49503232, 61879040, 68280320, 99006464, 123758080, 198012928, 247516160, 396025856, 495032320, 990064640, 1980129280]

約数ペア:

[(1, 1980129280), (2, 990064640), (4, 495032320), (5, 396025856), (8, 247516160), (10, 198012928), (16, 123758080), (20, 99006464), (29, 68280320), (32, 61879040), (40, 49503232), (58, 34140160), (64, 30939520), (80, 24751616), (116, 17070080), (128, 15469760), (145, 13656064), (160, 12375808), (232, 8535040), (256, 7734880), (290, 6828032), (320, 6187904), (464, 4267520), (512, 3867440), (580, 3414016), (640, 3093952), (928, 2133760), (1024, 1933720), (1160, 1707008), (1280, 1546976), (1667, 1187840), (1856, 1066880), (2048, 966860), (2320, 853504), (2560, 773488), (3334, 593920), (3712, 533440), (4096, 483430), (4640, 426752), (5120, 386744), (6668, 296960), (7424, 266720), (8192, 241715), (8335, 237568), (9280, 213376), (10240, 193372), (13336, 148480), (14848, 133360), (16670, 118784), (18560, 106688), (20480, 96686), (26672, 74240), (29696, 66680), (33340, 59392), (37120, 53344), (40960, 48343)]