20763848

素因数分解:

$2^3\times 7^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:104

約数の個数: 80

約数和(自身を含む): 48401280

約数和(自身を除く): 27637432

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 47, 49, 56, 92, 94, 98, 161, 184, 188, 196, 322, 329, 343, 376, 392, 644, 658, 686, 1081, 1127, 1288, 1316, 1372, 2162, 2254, 2303, 2401, 2632, 2744, 4324, 4508, 4606, 4802, 7567, 7889, 8648, 9016, 9212, 9604, 15134, 15778, 16121, 18424, 19208, 30268, 31556, 32242, 52969, 55223, 60536, 63112, 64484, 105938, 110446, 112847, 128968, 211876, 220892, 225694, 370783, 423752, 441784, 451388, 741566, 902776, 1483132, 2595481, 2966264, 5190962, 10381924, 20763848]

約数ペア:

[(1, 20763848), (2, 10381924), (4, 5190962), (7, 2966264), (8, 2595481), (14, 1483132), (23, 902776), (28, 741566), (46, 451388), (47, 441784), (49, 423752), (56, 370783), (92, 225694), (94, 220892), (98, 211876), (161, 128968), (184, 112847), (188, 110446), (196, 105938), (322, 64484), (329, 63112), (343, 60536), (376, 55223), (392, 52969), (644, 32242), (658, 31556), (686, 30268), (1081, 19208), (1127, 18424), (1288, 16121), (1316, 15778), (1372, 15134), (2162, 9604), (2254, 9212), (2303, 9016), (2401, 8648), (2632, 7889), (2744, 7567), (4324, 4802), (4508, 4606)]