12520525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 16749920

約数和(自身を除く): 4229395

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 613, 817, 1075, 3065, 4085, 11647, 15325, 20425, 26359, 58235, 131795, 291175, 500821, 658975, 2504105, 12520525]

約数ペア:

[(1, 12520525), (5, 2504105), (19, 658975), (25, 500821), (43, 291175), (95, 131795), (215, 58235), (475, 26359), (613, 20425), (817, 15325), (1075, 11647), (3065, 4085)]