661457280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31319}}^1$

素因数の和:31352

約数の個数: 128

約数和(自身を含む): 2300140800

約数和(自身を除く): 1638683520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 384, 440, 480, 528, 640, 660, 704, 880, 960, 1056, 1320, 1408, 1760, 1920, 2112, 2640, 3520, 4224, 5280, 7040, 10560, 21120, 31319, 62638, 93957, 125276, 156595, 187914, 250552, 313190, 344509, 375828, 469785, 501104, 626380, 689018, 751656, 939570, 1002208, 1033527, 1252760, 1378036, 1503312, 1722545, 1879140, 2004416, 2067054, 2505520, 2756072, 3006624, 3445090, 3758280, 4008832, 4134108, 5011040, 5167635, 5512144, 6013248, 6890180, 7516560, 8268216, 10022080, 10335270, 11024288, 12026496, 13780360, 15033120, 16536432, 20044160, 20670540, 22048576, 27560720, 30066240, 33072864, 41341080, 44097152, 55121440, 60132480, 66145728, 82682160, 110242880, 132291456, 165364320, 220485760, 330728640, 661457280]

約数ペア:

[(1, 661457280), (2, 330728640), (3, 220485760), (4, 165364320), (5, 132291456), (6, 110242880), (8, 82682160), (10, 66145728), (11, 60132480), (12, 55121440), (15, 44097152), (16, 41341080), (20, 33072864), (22, 30066240), (24, 27560720), (30, 22048576), (32, 20670540), (33, 20044160), (40, 16536432), (44, 15033120), (48, 13780360), (55, 12026496), (60, 11024288), (64, 10335270), (66, 10022080), (80, 8268216), (88, 7516560), (96, 6890180), (110, 6013248), (120, 5512144), (128, 5167635), (132, 5011040), (160, 4134108), (165, 4008832), (176, 3758280), (192, 3445090), (220, 3006624), (240, 2756072), (264, 2505520), (320, 2067054), (330, 2004416), (352, 1879140), (384, 1722545), (440, 1503312), (480, 1378036), (528, 1252760), (640, 1033527), (660, 1002208), (704, 939570), (880, 751656), (960, 689018), (1056, 626380), (1320, 501104), (1408, 469785), (1760, 375828), (1920, 344509), (2112, 313190), (2640, 250552), (3520, 187914), (4224, 156595), (5280, 125276), (7040, 93957), (10560, 62638), (21120, 31319)]