318720140

素因数分解:

$2^2\times 5^1\times {\mathrm{15936007}}^1$

素因数の和:15936016

約数の個数: 12

約数和(自身を含む): 669312336

約数和(自身を除く): 350592196

約数列:

[1, 2, 4, 5, 10, 20, 15936007, 31872014, 63744028, 79680035, 159360070, 318720140]

約数ペア:

[(1, 318720140), (2, 159360070), (4, 79680035), (5, 63744028), (10, 31872014), (20, 15936007)]