20455496

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 18916984

約数列:

[1, 2, 4, 8, 61, 122, 167, 244, 251, 334, 488, 502, 668, 1004, 1336, 2008, 10187, 15311, 20374, 30622, 40748, 41917, 61244, 81496, 83834, 122488, 167668, 335336, 2556937, 5113874, 10227748, 20455496]

約数ペア:

[(1, 20455496), (2, 10227748), (4, 5113874), (8, 2556937), (61, 335336), (122, 167668), (167, 122488), (244, 83834), (251, 81496), (334, 61244), (488, 41917), (502, 40748), (668, 30622), (1004, 20374), (1336, 15311), (2008, 10187)]