208481475

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{313}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 353227392

約数和(自身を除く): 144745917

約数列:

[1, 3, 5, 15, 25, 75, 83, 107, 249, 313, 321, 415, 535, 939, 1245, 1565, 1605, 2075, 2675, 4695, 6225, 7825, 8025, 8881, 23475, 25979, 26643, 33491, 44405, 77937, 100473, 129895, 133215, 167455, 222025, 389685, 502365, 649475, 666075, 837275, 1948425, 2511825, 2779753, 8339259, 13898765, 41696295, 69493825, 208481475]

約数ペア:

[(1, 208481475), (3, 69493825), (5, 41696295), (15, 13898765), (25, 8339259), (75, 2779753), (83, 2511825), (107, 1948425), (249, 837275), (313, 666075), (321, 649475), (415, 502365), (535, 389685), (939, 222025), (1245, 167455), (1565, 133215), (1605, 129895), (2075, 100473), (2675, 77937), (4695, 44405), (6225, 33491), (7825, 26643), (8025, 25979), (8881, 23475)]