28680465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1721}}^1$

素因数の和:1841

約数の個数: 32

約数和(自身を含む): 50585472

約数和(自身を除く): 21905007

約数列:

[1, 3, 5, 11, 15, 33, 55, 101, 165, 303, 505, 1111, 1515, 1721, 3333, 5163, 5555, 8605, 16665, 18931, 25815, 56793, 94655, 173821, 283965, 521463, 869105, 1912031, 2607315, 5736093, 9560155, 28680465]

約数ペア:

[(1, 28680465), (3, 9560155), (5, 5736093), (11, 2607315), (15, 1912031), (33, 869105), (55, 521463), (101, 283965), (165, 173821), (303, 94655), (505, 56793), (1111, 25815), (1515, 18931), (1721, 16665), (3333, 8605), (5163, 5555)]