208077639

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 362880000

約数和(自身を除く): 154802361

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 89, 203, 231, 267, 319, 349, 609, 623, 957, 979, 1047, 1869, 2233, 2443, 2581, 2937, 3839, 6699, 6853, 7329, 7743, 10121, 11517, 18067, 20559, 26873, 28391, 30363, 31061, 54201, 70847, 80619, 85173, 93183, 111331, 198737, 212541, 217427, 333993, 341671, 596211, 652281, 779317, 900769, 1025013, 2337951, 2391697, 2702307, 6305383, 7175091, 9908459, 18916149, 29725377, 69359213, 208077639]

約数ペア:

[(1, 208077639), (3, 69359213), (7, 29725377), (11, 18916149), (21, 9908459), (29, 7175091), (33, 6305383), (77, 2702307), (87, 2391697), (89, 2337951), (203, 1025013), (231, 900769), (267, 779317), (319, 652281), (349, 596211), (609, 341671), (623, 333993), (957, 217427), (979, 212541), (1047, 198737), (1869, 111331), (2233, 93183), (2443, 85173), (2581, 80619), (2937, 70847), (3839, 54201), (6699, 31061), (6853, 30363), (7329, 28391), (7743, 26873), (10121, 20559), (11517, 18067)]