688889780829

素因数分解:

$3^4\times {\mathrm{53}}^2\times {\mathrm{151}}^1\times {\mathrm{20051}}^1$

素因数の和:20320

約数の個数: 60

約数和(自身を含む): 1055864047392

約数和(自身を除く): 366974266563

約数列:

[1, 3, 9, 27, 53, 81, 151, 159, 453, 477, 1359, 1431, 2809, 4077, 4293, 8003, 8427, 12231, 20051, 24009, 25281, 60153, 72027, 75843, 180459, 216081, 227529, 424159, 541377, 648243, 1062703, 1272477, 1624131, 3027701, 3188109, 3817431, 9083103, 9564327, 11452293, 27249309, 28692981, 34356879, 56323259, 81747927, 86078943, 160468153, 168969777, 245243781, 481404459, 506909331, 1444213377, 1520727993, 4332640131, 4562183979, 8504812109, 12997920393, 25514436327, 76543308981, 229629926943, 688889780829]

約数ペア:

[(1, 688889780829), (3, 229629926943), (9, 76543308981), (27, 25514436327), (53, 12997920393), (81, 8504812109), (151, 4562183979), (159, 4332640131), (453, 1520727993), (477, 1444213377), (1359, 506909331), (1431, 481404459), (2809, 245243781), (4077, 168969777), (4293, 160468153), (8003, 86078943), (8427, 81747927), (12231, 56323259), (20051, 34356879), (24009, 28692981), (25281, 27249309), (60153, 11452293), (72027, 9564327), (75843, 9083103), (180459, 3817431), (216081, 3188109), (227529, 3027701), (424159, 1624131), (541377, 1272477), (648243, 1062703)]