81219208

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{14081}}^1$

素因数の和:14197

約数の個数: 32

約数和(自身を含む): 175743360

約数和(自身を除く): 94524152

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 5768, 14081, 28162, 56324, 98567, 112648, 197134, 394268, 788536, 1450343, 2900686, 5801372, 10152401, 11602744, 20304802, 40609604, 81219208]

約数ペア:

[(1, 81219208), (2, 40609604), (4, 20304802), (7, 11602744), (8, 10152401), (14, 5801372), (28, 2900686), (56, 1450343), (103, 788536), (206, 394268), (412, 197134), (721, 112648), (824, 98567), (1442, 56324), (2884, 28162), (5768, 14081)]