66138544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{217561}}^1$

素因数の和:217588

約数の個数: 20

約数和(自身を含む): 134888440

約数和(自身を除く): 68749896

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 217561, 435122, 870244, 1740488, 3480976, 4133659, 8267318, 16534636, 33069272, 66138544]

約数ペア:

[(1, 66138544), (2, 33069272), (4, 16534636), (8, 8267318), (16, 4133659), (19, 3480976), (38, 1740488), (76, 870244), (152, 435122), (304, 217561)]