20812656

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 56567808

約数和(自身を除く): 35755152

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 71, 93, 124, 142, 186, 197, 213, 248, 284, 372, 394, 426, 496, 568, 591, 744, 788, 852, 1136, 1182, 1488, 1576, 1704, 2201, 2364, 3152, 3408, 4402, 4728, 6107, 6603, 8804, 9456, 12214, 13206, 13987, 17608, 18321, 24428, 26412, 27974, 35216, 36642, 41961, 48856, 52824, 55948, 73284, 83922, 97712, 105648, 111896, 146568, 167844, 223792, 293136, 335688, 433597, 671376, 867194, 1300791, 1734388, 2601582, 3468776, 5203164, 6937552, 10406328, 20812656]

約数ペア:

[(1, 20812656), (2, 10406328), (3, 6937552), (4, 5203164), (6, 3468776), (8, 2601582), (12, 1734388), (16, 1300791), (24, 867194), (31, 671376), (48, 433597), (62, 335688), (71, 293136), (93, 223792), (124, 167844), (142, 146568), (186, 111896), (197, 105648), (213, 97712), (248, 83922), (284, 73284), (372, 55948), (394, 52824), (426, 48856), (496, 41961), (568, 36642), (591, 35216), (744, 27974), (788, 26412), (852, 24428), (1136, 18321), (1182, 17608), (1488, 13987), (1576, 13206), (1704, 12214), (2201, 9456), (2364, 8804), (3152, 6603), (3408, 6107), (4402, 4728)]