128217825

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{33521}}^1$

素因数の和:33554

約数の個数: 36

約数和(自身を含む): 243168588

約数和(自身を除く): 114950763

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 33521, 100563, 167605, 301689, 502815, 569857, 838025, 1508445, 1709571, 2514075, 2849285, 5128713, 7542225, 8547855, 14246425, 25643565, 42739275, 128217825]

約数ペア:

[(1, 128217825), (3, 42739275), (5, 25643565), (9, 14246425), (15, 8547855), (17, 7542225), (25, 5128713), (45, 2849285), (51, 2514075), (75, 1709571), (85, 1508445), (153, 838025), (225, 569857), (255, 502815), (425, 301689), (765, 167605), (1275, 100563), (3825, 33521)]