161215490

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181141}}^1$

素因数の和:181237

約数の個数: 16

約数和(自身を含む): 293450040

約数和(自身を除く): 132234550

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 181141, 362282, 905705, 1811410, 16121549, 32243098, 80607745, 161215490]

約数ペア:

[(1, 161215490), (2, 80607745), (5, 32243098), (10, 16121549), (89, 1811410), (178, 905705), (445, 362282), (890, 181141)]