209403760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{84437}}^1$

素因数の和:84481

約数の個数: 40

約数和(自身を含む): 502574976

約数和(自身を除く): 293171216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 84437, 168874, 337748, 422185, 675496, 844370, 1350992, 1688740, 2617547, 3377480, 5235094, 6754960, 10470188, 13087735, 20940376, 26175470, 41880752, 52350940, 104701880, 209403760]

約数ペア:

[(1, 209403760), (2, 104701880), (4, 52350940), (5, 41880752), (8, 26175470), (10, 20940376), (16, 13087735), (20, 10470188), (31, 6754960), (40, 5235094), (62, 3377480), (80, 2617547), (124, 1688740), (155, 1350992), (248, 844370), (310, 675496), (496, 422185), (620, 337748), (1240, 168874), (2480, 84437)]