256985175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{201557}}^1$

素因数の和:201587

約数の個数: 24

約数和(自身を含む): 449877456

約数和(自身を除く): 192892281

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 201557, 604671, 1007785, 3023355, 3426469, 5038925, 10279407, 15116775, 17132345, 51397035, 85661725, 256985175]

約数ペア:

[(1, 256985175), (3, 85661725), (5, 51397035), (15, 17132345), (17, 15116775), (25, 10279407), (51, 5038925), (75, 3426469), (85, 3023355), (255, 1007785), (425, 604671), (1275, 201557)]