28476745

素因数分解:

$5^1\times {\mathrm{11}}^4\times {\mathrm{389}}^1$

素因数の和:438

約数の個数: 20

約数和(自身を含む): 37685700

約数和(自身を除く): 9208955

約数列:

[1, 5, 11, 55, 121, 389, 605, 1331, 1945, 4279, 6655, 14641, 21395, 47069, 73205, 235345, 517759, 2588795, 5695349, 28476745]

約数ペア:

[(1, 28476745), (5, 5695349), (11, 2588795), (55, 517759), (121, 235345), (389, 73205), (605, 47069), (1331, 21395), (1945, 14641), (4279, 6655)]