79907120

素因数分解:

$2^4\times 5^1\times {\mathrm{998839}}^1$

素因数の和:998852

約数の個数: 20

約数和(自身を含む): 185784240

約数和(自身を除く): 105877120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 998839, 1997678, 3995356, 4994195, 7990712, 9988390, 15981424, 19976780, 39953560, 79907120]

約数ペア:

[(1, 79907120), (2, 39953560), (4, 19976780), (5, 15981424), (8, 9988390), (10, 7990712), (16, 4994195), (20, 3995356), (40, 1997678), (80, 998839)]