81362960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6317}}^1$

素因数の和:6360

約数の個数: 80

約数和(自身を含む): 225628416

約数和(自身を除く): 144265456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6317, 6440, 12634, 12880, 25268, 31585, 44219, 50536, 63170, 88438, 101072, 126340, 145291, 176876, 221095, 252680, 290582, 353752, 442190, 505360, 581164, 707504, 726455, 884380, 1017037, 1162328, 1452910, 1768760, 2034074, 2324656, 2905820, 3537520, 4068148, 5085185, 5811640, 8136296, 10170370, 11623280, 16272592, 20340740, 40681480, 81362960]

約数ペア:

[(1, 81362960), (2, 40681480), (4, 20340740), (5, 16272592), (7, 11623280), (8, 10170370), (10, 8136296), (14, 5811640), (16, 5085185), (20, 4068148), (23, 3537520), (28, 2905820), (35, 2324656), (40, 2034074), (46, 1768760), (56, 1452910), (70, 1162328), (80, 1017037), (92, 884380), (112, 726455), (115, 707504), (140, 581164), (161, 505360), (184, 442190), (230, 353752), (280, 290582), (322, 252680), (368, 221095), (460, 176876), (560, 145291), (644, 126340), (805, 101072), (920, 88438), (1288, 63170), (1610, 50536), (1840, 44219), (2576, 31585), (3220, 25268), (6317, 12880), (6440, 12634)]