1290905

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{479}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 1969920

約数和(自身を除く): 679015

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 479, 539, 2395, 2695, 3353, 5269, 16765, 23471, 26345, 36883, 117355, 184415, 258181, 1290905]

約数ペア:

[(1, 1290905), (5, 258181), (7, 184415), (11, 117355), (35, 36883), (49, 26345), (55, 23471), (77, 16765), (245, 5269), (385, 3353), (479, 2695), (539, 2395)]