20786880380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148477717}}^1$

素因数の和:148477733

約数の個数: 24

約数和(自身を含む): 49888513248

約数和(自身を除く): 29101632868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148477717, 296955434, 593910868, 742388585, 1039344019, 1484777170, 2078688038, 2969554340, 4157376076, 5196720095, 10393440190, 20786880380]

約数ペア:

[(1, 20786880380), (2, 10393440190), (4, 5196720095), (5, 4157376076), (7, 2969554340), (10, 2078688038), (14, 1484777170), (20, 1039344019), (28, 742388585), (35, 593910868), (70, 296955434), (140, 148477717)]