80580920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{287789}}^1$

素因数の和:287807

約数の個数: 32

約数和(自身を含む): 207208800

約数和(自身を除く): 126627880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 287789, 575578, 1151156, 1438945, 2014523, 2302312, 2877890, 4029046, 5755780, 8058092, 10072615, 11511560, 16116184, 20145230, 40290460, 80580920]

約数ペア:

[(1, 80580920), (2, 40290460), (4, 20145230), (5, 16116184), (7, 11511560), (8, 10072615), (10, 8058092), (14, 5755780), (20, 4029046), (28, 2877890), (35, 2302312), (40, 2014523), (56, 1438945), (70, 1151156), (140, 575578), (280, 287789)]