864331520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:570

約数の個数: 144

約数和(自身を含む): 2252651520

約数和(自身を除く): 1388320000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 127, 128, 130, 160, 208, 254, 256, 260, 320, 409, 416, 508, 520, 635, 640, 818, 832, 1016, 1040, 1270, 1280, 1636, 1651, 1664, 2032, 2045, 2080, 2540, 3272, 3302, 3328, 4064, 4090, 4160, 5080, 5317, 6544, 6604, 8128, 8180, 8255, 8320, 10160, 10634, 13088, 13208, 16256, 16360, 16510, 16640, 20320, 21268, 26176, 26416, 26585, 32512, 32720, 33020, 40640, 42536, 51943, 52352, 52832, 53170, 65440, 66040, 81280, 85072, 103886, 104704, 105664, 106340, 130880, 132080, 162560, 170144, 207772, 211328, 212680, 259715, 261760, 264160, 340288, 415544, 422656, 425360, 519430, 523520, 528320, 675259, 680576, 831088, 850720, 1038860, 1056640, 1350518, 1361152, 1662176, 1701440, 2077720, 2113280, 2701036, 3324352, 3376295, 3402880, 4155440, 5402072, 6648704, 6752590, 6805760, 8310880, 10804144, 13297408, 13505180, 16621760, 21608288, 27010360, 33243520, 43216576, 54020720, 66487040, 86433152, 108041440, 172866304, 216082880, 432165760, 864331520]

約数ペア:

[(1, 864331520), (2, 432165760), (4, 216082880), (5, 172866304), (8, 108041440), (10, 86433152), (13, 66487040), (16, 54020720), (20, 43216576), (26, 33243520), (32, 27010360), (40, 21608288), (52, 16621760), (64, 13505180), (65, 13297408), (80, 10804144), (104, 8310880), (127, 6805760), (128, 6752590), (130, 6648704), (160, 5402072), (208, 4155440), (254, 3402880), (256, 3376295), (260, 3324352), (320, 2701036), (409, 2113280), (416, 2077720), (508, 1701440), (520, 1662176), (635, 1361152), (640, 1350518), (818, 1056640), (832, 1038860), (1016, 850720), (1040, 831088), (1270, 680576), (1280, 675259), (1636, 528320), (1651, 523520), (1664, 519430), (2032, 425360), (2045, 422656), (2080, 415544), (2540, 340288), (3272, 264160), (3302, 261760), (3328, 259715), (4064, 212680), (4090, 211328), (4160, 207772), (5080, 170144), (5317, 162560), (6544, 132080), (6604, 130880), (8128, 106340), (8180, 105664), (8255, 104704), (8320, 103886), (10160, 85072), (10634, 81280), (13088, 66040), (13208, 65440), (16256, 53170), (16360, 52832), (16510, 52352), (16640, 51943), (20320, 42536), (21268, 40640), (26176, 33020), (26416, 32720), (26585, 32512)]