28292925

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 49584128

約数和(自身を除く): 21291203

約数列:

[1, 3, 5, 15, 25, 31, 43, 75, 93, 129, 155, 215, 283, 465, 645, 775, 849, 1075, 1333, 1415, 2325, 3225, 3999, 4245, 6665, 7075, 8773, 12169, 19995, 21225, 26319, 33325, 36507, 43865, 60845, 99975, 131595, 182535, 219325, 304225, 377239, 657975, 912675, 1131717, 1886195, 5658585, 9430975, 28292925]

約数ペア:

[(1, 28292925), (3, 9430975), (5, 5658585), (15, 1886195), (25, 1131717), (31, 912675), (43, 657975), (75, 377239), (93, 304225), (129, 219325), (155, 182535), (215, 131595), (283, 99975), (465, 60845), (645, 43865), (775, 36507), (849, 33325), (1075, 26319), (1333, 21225), (1415, 19995), (2325, 12169), (3225, 8773), (3999, 7075), (4245, 6665)]