20549528

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:168

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22028392

約数列:

[1, 2, 4, 8, 31, 41, 43, 47, 62, 82, 86, 94, 124, 164, 172, 188, 248, 328, 344, 376, 1271, 1333, 1457, 1763, 1927, 2021, 2542, 2666, 2914, 3526, 3854, 4042, 5084, 5332, 5828, 7052, 7708, 8084, 10168, 10664, 11656, 14104, 15416, 16168, 54653, 59737, 62651, 82861, 109306, 119474, 125302, 165722, 218612, 238948, 250604, 331444, 437224, 477896, 501208, 662888, 2568691, 5137382, 10274764, 20549528]

約数ペア:

[(1, 20549528), (2, 10274764), (4, 5137382), (8, 2568691), (31, 662888), (41, 501208), (43, 477896), (47, 437224), (62, 331444), (82, 250604), (86, 238948), (94, 218612), (124, 165722), (164, 125302), (172, 119474), (188, 109306), (248, 82861), (328, 62651), (344, 59737), (376, 54653), (1271, 16168), (1333, 15416), (1457, 14104), (1763, 11656), (1927, 10664), (2021, 10168), (2542, 8084), (2666, 7708), (2914, 7052), (3526, 5828), (3854, 5332), (4042, 5084)]