2480225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 3481920

約数和(自身を除く): 1001695

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 311, 319, 725, 1555, 1595, 3421, 7775, 7975, 9019, 17105, 45095, 85525, 99209, 225475, 496045, 2480225]

約数ペア:

[(1, 2480225), (5, 496045), (11, 225475), (25, 99209), (29, 85525), (55, 45095), (145, 17105), (275, 9019), (311, 7975), (319, 7775), (725, 3421), (1555, 1595)]