28606325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 42586560

約数和(自身を除く): 13980235

約数列:

[1, 5, 11, 17, 25, 29, 55, 85, 145, 187, 211, 275, 319, 425, 493, 725, 935, 1055, 1595, 2321, 2465, 3587, 4675, 5275, 5423, 6119, 7975, 11605, 12325, 17935, 27115, 30595, 39457, 58025, 67309, 89675, 104023, 135575, 152975, 197285, 336545, 520115, 986425, 1144253, 1682725, 2600575, 5721265, 28606325]

約数ペア:

[(1, 28606325), (5, 5721265), (11, 2600575), (17, 1682725), (25, 1144253), (29, 986425), (55, 520115), (85, 336545), (145, 197285), (187, 152975), (211, 135575), (275, 104023), (319, 89675), (425, 67309), (493, 58025), (725, 39457), (935, 30595), (1055, 27115), (1595, 17935), (2321, 12325), (2465, 11605), (3587, 7975), (4675, 6119), (5275, 5423)]