1380821561

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 1791590400

約数和(自身を除く): 410768839

約数列:

[1, 7, 19, 31, 53, 71, 89, 133, 217, 371, 497, 589, 623, 1007, 1349, 1643, 1691, 2201, 2759, 3763, 4123, 4717, 6319, 7049, 9443, 11501, 11837, 15407, 19313, 26341, 31217, 33019, 41819, 44233, 52421, 71497, 89623, 116653, 120061, 146227, 195889, 218519, 292733, 334907, 366947, 500479, 627361, 816571, 840427, 1023589, 1371223, 2216407, 2344349, 2778313, 3721891, 6363233, 10382117, 15514849, 19448191, 26053237, 44542631, 72674819, 197260223, 1380821561]

約数ペア:

[(1, 1380821561), (7, 197260223), (19, 72674819), (31, 44542631), (53, 26053237), (71, 19448191), (89, 15514849), (133, 10382117), (217, 6363233), (371, 3721891), (497, 2778313), (589, 2344349), (623, 2216407), (1007, 1371223), (1349, 1023589), (1643, 840427), (1691, 816571), (2201, 627361), (2759, 500479), (3763, 366947), (4123, 334907), (4717, 292733), (6319, 218519), (7049, 195889), (9443, 146227), (11501, 120061), (11837, 116653), (15407, 89623), (19313, 71497), (26341, 52421), (31217, 44233), (33019, 41819)]