20606488

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26567912

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 107, 133, 152, 181, 214, 266, 362, 428, 532, 724, 749, 856, 1064, 1267, 1448, 1498, 2033, 2534, 2996, 3439, 4066, 5068, 5992, 6878, 8132, 10136, 13756, 14231, 16264, 19367, 24073, 27512, 28462, 38734, 48146, 56924, 77468, 96292, 113848, 135569, 154936, 192584, 271138, 367973, 542276, 735946, 1084552, 1471892, 2575811, 2943784, 5151622, 10303244, 20606488]

約数ペア:

[(1, 20606488), (2, 10303244), (4, 5151622), (7, 2943784), (8, 2575811), (14, 1471892), (19, 1084552), (28, 735946), (38, 542276), (56, 367973), (76, 271138), (107, 192584), (133, 154936), (152, 135569), (181, 113848), (214, 96292), (266, 77468), (362, 56924), (428, 48146), (532, 38734), (724, 28462), (749, 27512), (856, 24073), (1064, 19367), (1267, 16264), (1448, 14231), (1498, 13756), (2033, 10136), (2534, 8132), (2996, 6878), (3439, 5992), (4066, 5068)]