51505120

素因数分解:

$2^5\times 5^1\times {\mathrm{487}}^1\times {\mathrm{661}}^1$

素因数の和:1163

約数の個数: 48

約数和(自身を含む): 122115168

約数和(自身を除く): 70610048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 487, 661, 974, 1322, 1948, 2435, 2644, 3305, 3896, 4870, 5288, 6610, 7792, 9740, 10576, 13220, 15584, 19480, 21152, 26440, 38960, 52880, 77920, 105760, 321907, 643814, 1287628, 1609535, 2575256, 3219070, 5150512, 6438140, 10301024, 12876280, 25752560, 51505120]

約数ペア:

[(1, 51505120), (2, 25752560), (4, 12876280), (5, 10301024), (8, 6438140), (10, 5150512), (16, 3219070), (20, 2575256), (32, 1609535), (40, 1287628), (80, 643814), (160, 321907), (487, 105760), (661, 77920), (974, 52880), (1322, 38960), (1948, 26440), (2435, 21152), (2644, 19480), (3305, 15584), (3896, 13220), (4870, 10576), (5288, 9740), (6610, 7792)]