28252785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2063}}^1$

素因数の和:2165

約数の個数: 32

約数和(自身を含む): 49932288

約数和(自身を除く): 21679503

約数列:

[1, 3, 5, 11, 15, 33, 55, 83, 165, 249, 415, 913, 1245, 2063, 2739, 4565, 6189, 10315, 13695, 22693, 30945, 68079, 113465, 171229, 340395, 513687, 856145, 1883519, 2568435, 5650557, 9417595, 28252785]

約数ペア:

[(1, 28252785), (3, 9417595), (5, 5650557), (11, 2568435), (15, 1883519), (33, 856145), (55, 513687), (83, 340395), (165, 171229), (249, 113465), (415, 68079), (913, 30945), (1245, 22693), (2063, 13695), (2739, 10315), (4565, 6189)]