21744640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:193

約数の個数: 88

約数和(自身を含む): 54237312

約数和(自身を除く): 32492672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 137, 155, 160, 248, 256, 274, 310, 320, 496, 512, 548, 620, 640, 685, 992, 1024, 1096, 1240, 1280, 1370, 1984, 2192, 2480, 2560, 2740, 3968, 4247, 4384, 4960, 5120, 5480, 7936, 8494, 8768, 9920, 10960, 15872, 16988, 17536, 19840, 21235, 21920, 31744, 33976, 35072, 39680, 42470, 43840, 67952, 70144, 79360, 84940, 87680, 135904, 140288, 158720, 169880, 175360, 271808, 339760, 350720, 543616, 679520, 701440, 1087232, 1359040, 2174464, 2718080, 4348928, 5436160, 10872320, 21744640]

約数ペア:

[(1, 21744640), (2, 10872320), (4, 5436160), (5, 4348928), (8, 2718080), (10, 2174464), (16, 1359040), (20, 1087232), (31, 701440), (32, 679520), (40, 543616), (62, 350720), (64, 339760), (80, 271808), (124, 175360), (128, 169880), (137, 158720), (155, 140288), (160, 135904), (248, 87680), (256, 84940), (274, 79360), (310, 70144), (320, 67952), (496, 43840), (512, 42470), (548, 39680), (620, 35072), (640, 33976), (685, 31744), (992, 21920), (1024, 21235), (1096, 19840), (1240, 17536), (1280, 16988), (1370, 15872), (1984, 10960), (2192, 9920), (2480, 8768), (2560, 8494), (2740, 7936), (3968, 5480), (4247, 5120), (4384, 4960)]