81357760

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:854

約数の個数: 112

約数和(自身を含む): 218907360

約数和(自身を除く): 137549600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 145, 160, 176, 220, 232, 290, 319, 320, 352, 440, 464, 580, 638, 704, 797, 880, 928, 1160, 1276, 1594, 1595, 1760, 1856, 2320, 2552, 3188, 3190, 3520, 3985, 4640, 5104, 6376, 6380, 7970, 8767, 9280, 10208, 12752, 12760, 15940, 17534, 20416, 23113, 25504, 25520, 31880, 35068, 43835, 46226, 51008, 51040, 63760, 70136, 87670, 92452, 102080, 115565, 127520, 140272, 175340, 184904, 231130, 254243, 255040, 280544, 350680, 369808, 462260, 508486, 561088, 701360, 739616, 924520, 1016972, 1271215, 1402720, 1479232, 1849040, 2033944, 2542430, 2805440, 3698080, 4067888, 5084860, 7396160, 8135776, 10169720, 16271552, 20339440, 40678880, 81357760]

約数ペア:

[(1, 81357760), (2, 40678880), (4, 20339440), (5, 16271552), (8, 10169720), (10, 8135776), (11, 7396160), (16, 5084860), (20, 4067888), (22, 3698080), (29, 2805440), (32, 2542430), (40, 2033944), (44, 1849040), (55, 1479232), (58, 1402720), (64, 1271215), (80, 1016972), (88, 924520), (110, 739616), (116, 701360), (145, 561088), (160, 508486), (176, 462260), (220, 369808), (232, 350680), (290, 280544), (319, 255040), (320, 254243), (352, 231130), (440, 184904), (464, 175340), (580, 140272), (638, 127520), (704, 115565), (797, 102080), (880, 92452), (928, 87670), (1160, 70136), (1276, 63760), (1594, 51040), (1595, 51008), (1760, 46226), (1856, 43835), (2320, 35068), (2552, 31880), (3188, 25520), (3190, 25504), (3520, 23113), (3985, 20416), (4640, 17534), (5104, 15940), (6376, 12760), (6380, 12752), (7970, 10208), (8767, 9280)]