221280878

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:849

約数の個数: 64

約数和(自身を含む): 435456000

約数和(自身を除く): 214175122

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 89, 91, 133, 178, 182, 247, 266, 494, 623, 719, 1157, 1246, 1438, 1691, 1729, 2314, 3382, 3458, 5033, 8099, 9347, 10066, 11837, 13661, 16198, 18694, 21983, 23674, 27322, 43966, 63991, 65429, 95627, 127982, 130858, 153881, 177593, 191254, 307762, 355186, 447937, 831883, 895874, 1215829, 1243151, 1663766, 2431658, 2486302, 5823181, 8510803, 11646362, 15805777, 17021606, 31611554, 110640439, 221280878]

約数ペア:

[(1, 221280878), (2, 110640439), (7, 31611554), (13, 17021606), (14, 15805777), (19, 11646362), (26, 8510803), (38, 5823181), (89, 2486302), (91, 2431658), (133, 1663766), (178, 1243151), (182, 1215829), (247, 895874), (266, 831883), (494, 447937), (623, 355186), (719, 307762), (1157, 191254), (1246, 177593), (1438, 153881), (1691, 130858), (1729, 127982), (2314, 95627), (3382, 65429), (3458, 63991), (5033, 43966), (8099, 27322), (9347, 23674), (10066, 21983), (11837, 18694), (13661, 16198)]