256218501

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{821}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 436304448

約数和(自身を除く): 180085947

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 193, 231, 539, 579, 821, 1351, 1617, 2123, 2463, 4053, 5747, 6369, 9031, 9457, 14861, 17241, 27093, 28371, 40229, 44583, 63217, 104027, 120687, 158453, 189651, 312081, 442519, 475359, 1109171, 1327557, 1742983, 3327513, 5228949, 7764197, 12200881, 23292591, 36602643, 85406167, 256218501]

約数ペア:

[(1, 256218501), (3, 85406167), (7, 36602643), (11, 23292591), (21, 12200881), (33, 7764197), (49, 5228949), (77, 3327513), (147, 1742983), (193, 1327557), (231, 1109171), (539, 475359), (579, 442519), (821, 312081), (1351, 189651), (1617, 158453), (2123, 120687), (2463, 104027), (4053, 63217), (5747, 44583), (6369, 40229), (9031, 28371), (9457, 27093), (14861, 17241)]