20510204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23519236

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1559, 3118, 3289, 6236, 6578, 13156, 17149, 20267, 34298, 35857, 40534, 68596, 71714, 81068, 143428, 222937, 394427, 445874, 466141, 788854, 891748, 932282, 1577708, 1864564, 5127551, 10255102, 20510204]

約数ペア:

[(1, 20510204), (2, 10255102), (4, 5127551), (11, 1864564), (13, 1577708), (22, 932282), (23, 891748), (26, 788854), (44, 466141), (46, 445874), (52, 394427), (92, 222937), (143, 143428), (253, 81068), (286, 71714), (299, 68596), (506, 40534), (572, 35857), (598, 34298), (1012, 20267), (1196, 17149), (1559, 13156), (3118, 6578), (3289, 6236)]