51710920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21193}}^1$

素因数の和:21265

約数の個数: 32

約数和(自身を含む): 118262520

約数和(自身を除く): 66551600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 21193, 42386, 84772, 105965, 169544, 211930, 423860, 847720, 1292773, 2585546, 5171092, 6463865, 10342184, 12927730, 25855460, 51710920]

約数ペア:

[(1, 51710920), (2, 25855460), (4, 12927730), (5, 10342184), (8, 6463865), (10, 5171092), (20, 2585546), (40, 1292773), (61, 847720), (122, 423860), (244, 211930), (305, 169544), (488, 105965), (610, 84772), (1220, 42386), (2440, 21193)]