1338156728

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{260951}}^1$

素因数の和:261598

約数の個数: 16

約数和(自身を含む): 2512967760

約数和(自身を除く): 1174811032

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 5128, 260951, 521902, 1043804, 2087608, 167269591, 334539182, 669078364, 1338156728]

約数ペア:

[(1, 1338156728), (2, 669078364), (4, 334539182), (8, 167269591), (641, 2087608), (1282, 1043804), (2564, 521902), (5128, 260951)]