20647510142

素因数分解:

$2^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{811}}^1\times {\mathrm{3659}}^1$

素因数の和:4557

約数の個数: 48

約数和(自身を含む): 36590279040

約数和(自身を除く): 15942768898

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 497, 811, 994, 1622, 3479, 3659, 5677, 6958, 7318, 11354, 25613, 39739, 51226, 57581, 79478, 115162, 179291, 259789, 358582, 403067, 519578, 806134, 1818523, 2821469, 2967449, 3637046, 5642938, 5934898, 12729661, 20772143, 25459322, 41544286, 145405001, 210688879, 290810002, 421377758, 1474822153, 2949644306, 10323755071, 20647510142]

約数ペア:

[(1, 20647510142), (2, 10323755071), (7, 2949644306), (14, 1474822153), (49, 421377758), (71, 290810002), (98, 210688879), (142, 145405001), (497, 41544286), (811, 25459322), (994, 20772143), (1622, 12729661), (3479, 5934898), (3659, 5642938), (5677, 3637046), (6958, 2967449), (7318, 2821469), (11354, 1818523), (25613, 806134), (39739, 519578), (51226, 403067), (57581, 358582), (79478, 259789), (115162, 179291)]