40399520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{5153}}^1$

素因数の和:5182

約数の個数: 72

約数和(自身を含む): 111048084

約数和(自身を除く): 70648564

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 5153, 7840, 10306, 20612, 25765, 36071, 41224, 51530, 72142, 82448, 103060, 144284, 164896, 180355, 206120, 252497, 288568, 360710, 412240, 504994, 577136, 721420, 824480, 1009988, 1154272, 1262485, 1442840, 2019976, 2524970, 2885680, 4039952, 5049940, 5771360, 8079904, 10099880, 20199760, 40399520]

約数ペア:

[(1, 40399520), (2, 20199760), (4, 10099880), (5, 8079904), (7, 5771360), (8, 5049940), (10, 4039952), (14, 2885680), (16, 2524970), (20, 2019976), (28, 1442840), (32, 1262485), (35, 1154272), (40, 1009988), (49, 824480), (56, 721420), (70, 577136), (80, 504994), (98, 412240), (112, 360710), (140, 288568), (160, 252497), (196, 206120), (224, 180355), (245, 164896), (280, 144284), (392, 103060), (490, 82448), (560, 72142), (784, 51530), (980, 41224), (1120, 36071), (1568, 25765), (1960, 20612), (3920, 10306), (5153, 7840)]