201780722

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 380298240

約数和(自身を除く): 178517518

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 71, 142, 143, 209, 247, 286, 418, 494, 523, 781, 923, 1046, 1349, 1562, 1846, 2698, 2717, 5434, 5753, 6799, 9937, 10153, 11506, 13598, 14839, 17537, 19874, 20306, 29678, 35074, 37133, 74266, 74789, 109307, 129181, 149578, 192907, 218614, 258362, 385814, 408463, 482729, 705527, 816926, 965458, 1411054, 1420991, 2841982, 5310019, 7760797, 9171851, 10620038, 15521594, 18343702, 100890361, 201780722]

約数ペア:

[(1, 201780722), (2, 100890361), (11, 18343702), (13, 15521594), (19, 10620038), (22, 9171851), (26, 7760797), (38, 5310019), (71, 2841982), (142, 1420991), (143, 1411054), (209, 965458), (247, 816926), (286, 705527), (418, 482729), (494, 408463), (523, 385814), (781, 258362), (923, 218614), (1046, 192907), (1349, 149578), (1562, 129181), (1846, 109307), (2698, 74789), (2717, 74266), (5434, 37133), (5753, 35074), (6799, 29678), (9937, 20306), (10153, 19874), (11506, 17537), (13598, 14839)]