80465440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 96

約数和(自身を含む): 209563200

約数和(自身を除く): 129097760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 131, 160, 176, 220, 262, 349, 352, 440, 524, 655, 698, 880, 1048, 1310, 1396, 1441, 1745, 1760, 2096, 2620, 2792, 2882, 3490, 3839, 4192, 5240, 5584, 5764, 6980, 7205, 7678, 10480, 11168, 11528, 13960, 14410, 15356, 19195, 20960, 23056, 27920, 28820, 30712, 38390, 45719, 46112, 55840, 57640, 61424, 76780, 91438, 115280, 122848, 153560, 182876, 228595, 230560, 307120, 365752, 457190, 502909, 614240, 731504, 914380, 1005818, 1463008, 1828760, 2011636, 2514545, 3657520, 4023272, 5029090, 7315040, 8046544, 10058180, 16093088, 20116360, 40232720, 80465440]

約数ペア:

[(1, 80465440), (2, 40232720), (4, 20116360), (5, 16093088), (8, 10058180), (10, 8046544), (11, 7315040), (16, 5029090), (20, 4023272), (22, 3657520), (32, 2514545), (40, 2011636), (44, 1828760), (55, 1463008), (80, 1005818), (88, 914380), (110, 731504), (131, 614240), (160, 502909), (176, 457190), (220, 365752), (262, 307120), (349, 230560), (352, 228595), (440, 182876), (524, 153560), (655, 122848), (698, 115280), (880, 91438), (1048, 76780), (1310, 61424), (1396, 57640), (1441, 55840), (1745, 46112), (1760, 45719), (2096, 38390), (2620, 30712), (2792, 28820), (2882, 27920), (3490, 23056), (3839, 20960), (4192, 19195), (5240, 15356), (5584, 14410), (5764, 13960), (6980, 11528), (7205, 11168), (7678, 10480)]