81120158

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{17939}}^1$

素因数の和:17984

約数の個数: 32

約数和(自身を含む): 155001600

約数和(自身を除く): 73881442

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4522, 17939, 35878, 125573, 251146, 304963, 340841, 609926, 681682, 2134741, 2385887, 4269482, 4771774, 5794297, 11588594, 40560079, 81120158]

約数ペア:

[(1, 81120158), (2, 40560079), (7, 11588594), (14, 5794297), (17, 4771774), (19, 4269482), (34, 2385887), (38, 2134741), (119, 681682), (133, 609926), (238, 340841), (266, 304963), (323, 251146), (646, 125573), (2261, 35878), (4522, 17939)]