20709164

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 45581760

約数和(自身を除く): 24872596

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 67, 76, 83, 98, 133, 134, 166, 196, 266, 268, 332, 469, 532, 581, 931, 938, 1162, 1273, 1577, 1862, 1876, 2324, 2546, 3154, 3283, 3724, 4067, 5092, 5561, 6308, 6566, 8134, 8911, 11039, 11122, 13132, 16268, 17822, 22078, 22244, 35644, 38927, 44156, 62377, 77273, 77854, 105659, 124754, 154546, 155708, 211318, 249508, 272489, 309092, 422636, 544978, 739613, 1089956, 1479226, 2958452, 5177291, 10354582, 20709164]

約数ペア:

[(1, 20709164), (2, 10354582), (4, 5177291), (7, 2958452), (14, 1479226), (19, 1089956), (28, 739613), (38, 544978), (49, 422636), (67, 309092), (76, 272489), (83, 249508), (98, 211318), (133, 155708), (134, 154546), (166, 124754), (196, 105659), (266, 77854), (268, 77273), (332, 62377), (469, 44156), (532, 38927), (581, 35644), (931, 22244), (938, 22078), (1162, 17822), (1273, 16268), (1577, 13132), (1862, 11122), (1876, 11039), (2324, 8911), (2546, 8134), (3154, 6566), (3283, 6308), (3724, 5561), (4067, 5092)]