420495

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 722064

約数和(自身を除く): 301569

約数列:

[1, 3, 5, 15, 17, 51, 85, 97, 255, 289, 291, 485, 867, 1445, 1455, 1649, 4335, 4947, 8245, 24735, 28033, 84099, 140165, 420495]

約数ペア:

[(1, 420495), (3, 140165), (5, 84099), (15, 28033), (17, 24735), (51, 8245), (85, 4947), (97, 4335), (255, 1649), (289, 1455), (291, 1445), (485, 867)]