20712055

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{929}}^1$

素因数の和:968

約数の個数: 32

約数和(自身を含む): 31248000

約数和(自身を除く): 10535945

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 343, 455, 637, 929, 1715, 3185, 4459, 4645, 6503, 12077, 22295, 32515, 45521, 60385, 84539, 227605, 318647, 422695, 591773, 1593235, 2958865, 4142411, 20712055]

約数ペア:

[(1, 20712055), (5, 4142411), (7, 2958865), (13, 1593235), (35, 591773), (49, 422695), (65, 318647), (91, 227605), (245, 84539), (343, 60385), (455, 45521), (637, 32515), (929, 22295), (1715, 12077), (3185, 6503), (4459, 4645)]