20116360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 49896000

約数和(自身を除く): 29779640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 349, 440, 524, 655, 698, 1048, 1310, 1396, 1441, 1745, 2620, 2792, 2882, 3490, 3839, 5240, 5764, 6980, 7205, 7678, 11528, 13960, 14410, 15356, 19195, 28820, 30712, 38390, 45719, 57640, 76780, 91438, 153560, 182876, 228595, 365752, 457190, 502909, 914380, 1005818, 1828760, 2011636, 2514545, 4023272, 5029090, 10058180, 20116360]

約数ペア:

[(1, 20116360), (2, 10058180), (4, 5029090), (5, 4023272), (8, 2514545), (10, 2011636), (11, 1828760), (20, 1005818), (22, 914380), (40, 502909), (44, 457190), (55, 365752), (88, 228595), (110, 182876), (131, 153560), (220, 91438), (262, 76780), (349, 57640), (440, 45719), (524, 38390), (655, 30712), (698, 28820), (1048, 19195), (1310, 15356), (1396, 14410), (1441, 13960), (1745, 11528), (2620, 7678), (2792, 7205), (2882, 6980), (3490, 5764), (3839, 5240)]