20115888945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78885839}}^1$

素因数の和:78885864

約数の個数: 16

約数和(自身を含む): 34078682880

約数和(自身を除く): 13962793935

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78885839, 236657517, 394429195, 1183287585, 1341059263, 4023177789, 6705296315, 20115888945]

約数ペア:

[(1, 20115888945), (3, 6705296315), (5, 4023177789), (15, 1341059263), (17, 1183287585), (51, 394429195), (85, 236657517), (255, 78885839)]