225065281

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 280166400

約数和(自身を除く): 55101119

約数列:

[1, 7, 23, 47, 49, 161, 329, 343, 607, 1081, 1127, 2303, 4249, 7567, 7889, 13961, 16121, 28529, 29743, 52969, 97727, 199703, 208201, 370783, 656167, 684089, 1397921, 4593169, 4788623, 9785447, 32152183, 225065281]

約数ペア:

[(1, 225065281), (7, 32152183), (23, 9785447), (47, 4788623), (49, 4593169), (161, 1397921), (329, 684089), (343, 656167), (607, 370783), (1081, 208201), (1127, 199703), (2303, 97727), (4249, 52969), (7567, 29743), (7889, 28529), (13961, 16121)]