131856405

素因数分解:

$3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 214118400

約数和(自身を除く): 82261995

約数列:

[1, 3, 5, 15, 163, 199, 271, 489, 597, 813, 815, 995, 1355, 2445, 2985, 4065, 32437, 44173, 53929, 97311, 132519, 161787, 162185, 220865, 269645, 486555, 662595, 808935, 8790427, 26371281, 43952135, 131856405]

約数ペア:

[(1, 131856405), (3, 43952135), (5, 26371281), (15, 8790427), (163, 808935), (199, 662595), (271, 486555), (489, 269645), (597, 220865), (813, 162185), (815, 161787), (995, 132519), (1355, 97311), (2445, 53929), (2985, 44173), (4065, 32437)]