19750891972

素因数分解:

$2^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{9931}}^1$

素因数の和:10161

約数の個数: 72

約数和(自身を含む): 41055312480

約数和(自身を除く): 21304420508

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 139, 146, 196, 278, 292, 511, 556, 973, 1022, 1946, 2044, 3577, 3892, 6811, 7154, 9931, 10147, 13622, 14308, 19862, 20294, 27244, 39724, 40588, 69517, 71029, 139034, 142058, 278068, 284116, 486619, 497203, 724963, 973238, 994406, 1380409, 1449926, 1946476, 1988812, 2760818, 2899852, 5074741, 5521636, 9662863, 10149482, 19325726, 20298964, 35523187, 38651452, 67640041, 71046374, 100769857, 135280082, 142092748, 201539714, 270560164, 403079428, 705388999, 1410777998, 2821555996, 4937722993, 9875445986, 19750891972]

約数ペア:

[(1, 19750891972), (2, 9875445986), (4, 4937722993), (7, 2821555996), (14, 1410777998), (28, 705388999), (49, 403079428), (73, 270560164), (98, 201539714), (139, 142092748), (146, 135280082), (196, 100769857), (278, 71046374), (292, 67640041), (511, 38651452), (556, 35523187), (973, 20298964), (1022, 19325726), (1946, 10149482), (2044, 9662863), (3577, 5521636), (3892, 5074741), (6811, 2899852), (7154, 2760818), (9931, 1988812), (10147, 1946476), (13622, 1449926), (14308, 1380409), (19862, 994406), (20294, 973238), (27244, 724963), (39724, 497203), (40588, 486619), (69517, 284116), (71029, 278068), (139034, 142058)]