64945580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{66271}}^1$

素因数の和:66294

約数の個数: 36

約数和(自身を含む): 158655168

約数和(自身を除く): 93709588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 66271, 132542, 265084, 331355, 463897, 662710, 927794, 1325420, 1855588, 2319485, 3247279, 4638970, 6494558, 9277940, 12989116, 16236395, 32472790, 64945580]

約数ペア:

[(1, 64945580), (2, 32472790), (4, 16236395), (5, 12989116), (7, 9277940), (10, 6494558), (14, 4638970), (20, 3247279), (28, 2319485), (35, 1855588), (49, 1325420), (70, 927794), (98, 662710), (140, 463897), (196, 331355), (245, 265084), (490, 132542), (980, 66271)]