20512876780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1391647}}^1$

素因数の和:1391734

約数の個数: 48

約数和(自身を含む): 47694560256

約数和(自身を除く): 27181683476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 1391647, 2783294, 5566588, 6958235, 13916470, 15308117, 27832940, 30616234, 61232468, 76540585, 93240349, 153081170, 186480698, 306162340, 372961396, 466201745, 932403490, 1025643839, 1864806980, 2051287678, 4102575356, 5128219195, 10256438390, 20512876780]

約数ペア:

[(1, 20512876780), (2, 10256438390), (4, 5128219195), (5, 4102575356), (10, 2051287678), (11, 1864806980), (20, 1025643839), (22, 932403490), (44, 466201745), (55, 372961396), (67, 306162340), (110, 186480698), (134, 153081170), (220, 93240349), (268, 76540585), (335, 61232468), (670, 30616234), (737, 27832940), (1340, 15308117), (1474, 13916470), (2948, 6958235), (3685, 5566588), (7370, 2783294), (14740, 1391647)]