388984940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{246193}}^1$

素因数の和:246281

約数の個数: 24

約数和(自身を含む): 827211840

約数和(自身を除く): 438226900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 246193, 492386, 984772, 1230965, 2461930, 4923860, 19449247, 38898494, 77796988, 97246235, 194492470, 388984940]

約数ペア:

[(1, 388984940), (2, 194492470), (4, 97246235), (5, 77796988), (10, 38898494), (20, 19449247), (79, 4923860), (158, 2461930), (316, 1230965), (395, 984772), (790, 492386), (1580, 246193)]