209121405

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 361912320

約数和(自身を除く): 152790915

約数列:

[1, 3, 5, 15, 23, 67, 69, 83, 109, 115, 201, 249, 327, 335, 345, 415, 545, 1005, 1245, 1541, 1635, 1909, 2507, 4623, 5561, 5727, 7303, 7521, 7705, 9047, 9545, 12535, 16683, 21909, 23115, 27141, 27805, 28635, 36515, 37605, 45235, 83415, 109545, 127903, 135705, 167969, 208081, 383709, 503907, 606149, 624243, 639515, 839845, 1040405, 1818447, 1918545, 2519535, 3030745, 3121215, 9092235, 13941427, 41824281, 69707135, 209121405]

約数ペア:

[(1, 209121405), (3, 69707135), (5, 41824281), (15, 13941427), (23, 9092235), (67, 3121215), (69, 3030745), (83, 2519535), (109, 1918545), (115, 1818447), (201, 1040405), (249, 839845), (327, 639515), (335, 624243), (345, 606149), (415, 503907), (545, 383709), (1005, 208081), (1245, 167969), (1541, 135705), (1635, 127903), (1909, 109545), (2507, 83415), (4623, 45235), (5561, 37605), (5727, 36515), (7303, 28635), (7521, 27805), (7705, 27141), (9047, 23115), (9545, 21909), (12535, 16683)]