81159344

素因数分解:

$2^4\times 7^1\times {\mathrm{251}}^1\times {\mathrm{2887}}^1$

素因数の和:3153

約数の個数: 40

約数和(自身を含む): 180488448

約数和(自身を除く): 99329104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 251, 502, 1004, 1757, 2008, 2887, 3514, 4016, 5774, 7028, 11548, 14056, 20209, 23096, 28112, 40418, 46192, 80836, 161672, 323344, 724637, 1449274, 2898548, 5072459, 5797096, 10144918, 11594192, 20289836, 40579672, 81159344]

約数ペア:

[(1, 81159344), (2, 40579672), (4, 20289836), (7, 11594192), (8, 10144918), (14, 5797096), (16, 5072459), (28, 2898548), (56, 1449274), (112, 724637), (251, 323344), (502, 161672), (1004, 80836), (1757, 46192), (2008, 40418), (2887, 28112), (3514, 23096), (4016, 20209), (5774, 14056), (7028, 11548)]