20120642655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78904481}}^1$

素因数の和:78904506

約数の個数: 16

約数和(自身を含む): 34086736224

約数和(自身を除く): 13966093569

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78904481, 236713443, 394522405, 1183567215, 1341376177, 4024128531, 6706880885, 20120642655]

約数ペア:

[(1, 20120642655), (3, 6706880885), (5, 4024128531), (15, 1341376177), (17, 1183567215), (51, 394522405), (85, 236713443), (255, 78904481)]