55180020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{131381}}^1$

素因数の和:131400

約数の個数: 48

約数和(自身を含む): 176577408

約数和(自身を除く): 121397388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 131381, 262762, 394143, 525524, 656905, 788286, 919667, 1313810, 1576572, 1839334, 1970715, 2627620, 2759001, 3678668, 3941430, 4598335, 5518002, 7882860, 9196670, 11036004, 13795005, 18393340, 27590010, 55180020]

約数ペア:

[(1, 55180020), (2, 27590010), (3, 18393340), (4, 13795005), (5, 11036004), (6, 9196670), (7, 7882860), (10, 5518002), (12, 4598335), (14, 3941430), (15, 3678668), (20, 2759001), (21, 2627620), (28, 1970715), (30, 1839334), (35, 1576572), (42, 1313810), (60, 919667), (70, 788286), (84, 656905), (105, 525524), (140, 394143), (210, 262762), (420, 131381)]