28103205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4649}}^1$

素因数の和:4701

約数の個数: 32

約数和(自身を含む): 49996800

約数和(自身を除く): 21893595

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 4649, 6045, 13947, 23245, 60437, 69735, 144119, 181311, 302185, 432357, 720595, 906555, 1873547, 2161785, 5620641, 9367735, 28103205]

約数ペア:

[(1, 28103205), (3, 9367735), (5, 5620641), (13, 2161785), (15, 1873547), (31, 906555), (39, 720595), (65, 432357), (93, 302185), (155, 181311), (195, 144119), (403, 69735), (465, 60437), (1209, 23245), (2015, 13947), (4649, 6045)]