78439780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{135241}}^1$

素因数の和:135279

約数の個数: 24

約数和(自身を含む): 170404920

約数和(自身を除く): 91965140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 135241, 270482, 540964, 676205, 1352410, 2704820, 3921989, 7843978, 15687956, 19609945, 39219890, 78439780]

約数ペア:

[(1, 78439780), (2, 39219890), (4, 19609945), (5, 15687956), (10, 7843978), (20, 3921989), (29, 2704820), (58, 1352410), (116, 676205), (145, 540964), (290, 270482), (580, 135241)]