20512120672

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{249127}}^1$

素因数の和:249251

約数の個数: 48

約数和(自身を含む): 42188332032

約数和(自身を除く): 21676211360

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 83, 124, 166, 248, 332, 496, 664, 992, 1328, 2573, 2656, 5146, 10292, 20584, 41168, 82336, 249127, 498254, 996508, 1993016, 3986032, 7722937, 7972064, 15445874, 20677541, 30891748, 41355082, 61783496, 82710164, 123566992, 165420328, 247133984, 330840656, 641003771, 661681312, 1282007542, 2564015084, 5128030168, 10256060336, 20512120672]

約数ペア:

[(1, 20512120672), (2, 10256060336), (4, 5128030168), (8, 2564015084), (16, 1282007542), (31, 661681312), (32, 641003771), (62, 330840656), (83, 247133984), (124, 165420328), (166, 123566992), (248, 82710164), (332, 61783496), (496, 41355082), (664, 30891748), (992, 20677541), (1328, 15445874), (2573, 7972064), (2656, 7722937), (5146, 3986032), (10292, 1993016), (20584, 996508), (41168, 498254), (82336, 249127)]