28920155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{3529}}^1$

素因数の和:3694

約数の個数: 16

約数和(自身を含む): 38124000

約数和(自身を除く): 9203845

約数列:

[1, 5, 11, 55, 149, 745, 1639, 3529, 8195, 17645, 38819, 194095, 525821, 2629105, 5784031, 28920155]

約数ペア:

[(1, 28920155), (5, 5784031), (11, 2629105), (55, 525821), (149, 194095), (745, 38819), (1639, 17645), (3529, 8195)]