688889164

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{128237}}^1$

素因数の和:128337

約数の個数: 24

約数和(自身を含む): 1292639040

約数和(自身を除く): 603749876

約数列:

[1, 2, 4, 17, 34, 68, 79, 158, 316, 1343, 2686, 5372, 128237, 256474, 512948, 2180029, 4360058, 8720116, 10130723, 20261446, 40522892, 172222291, 344444582, 688889164]

約数ペア:

[(1, 688889164), (2, 344444582), (4, 172222291), (17, 40522892), (34, 20261446), (68, 10130723), (79, 8720116), (158, 4360058), (316, 2180029), (1343, 512948), (2686, 256474), (5372, 128237)]