105489880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{18973}}^1$

素因数の和:19123

約数の個数: 32

約数和(自身を含む): 239072400

約数和(自身を除く): 133582520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 18973, 37946, 75892, 94865, 151784, 189730, 379460, 758920, 2637247, 5274494, 10548988, 13186235, 21097976, 26372470, 52744940, 105489880]

約数ペア:

[(1, 105489880), (2, 52744940), (4, 26372470), (5, 21097976), (8, 13186235), (10, 10548988), (20, 5274494), (40, 2637247), (139, 758920), (278, 379460), (556, 189730), (695, 151784), (1112, 94865), (1390, 75892), (2780, 37946), (5560, 18973)]