20055464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 25183576

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 47, 52, 88, 94, 104, 143, 188, 286, 373, 376, 517, 572, 611, 746, 1034, 1144, 1222, 1492, 2068, 2444, 2984, 4103, 4136, 4849, 4888, 6721, 8206, 9698, 13442, 16412, 17531, 19396, 26884, 32824, 35062, 38792, 53339, 53768, 70124, 106678, 140248, 192841, 213356, 227903, 385682, 426712, 455806, 771364, 911612, 1542728, 1823224, 2506933, 5013866, 10027732, 20055464]

約数ペア:

[(1, 20055464), (2, 10027732), (4, 5013866), (8, 2506933), (11, 1823224), (13, 1542728), (22, 911612), (26, 771364), (44, 455806), (47, 426712), (52, 385682), (88, 227903), (94, 213356), (104, 192841), (143, 140248), (188, 106678), (286, 70124), (373, 53768), (376, 53339), (517, 38792), (572, 35062), (611, 32824), (746, 26884), (1034, 19396), (1144, 17531), (1222, 16412), (1492, 13442), (2068, 9698), (2444, 8206), (2984, 6721), (4103, 4888), (4136, 4849)]