138735905

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{51479}}^1$

素因数の和:51509

約数の個数: 24

約数和(自身を含む): 211273920

約数和(自身を除く): 72538015

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 51479, 257395, 360353, 566269, 1801765, 2522471, 2831345, 3963883, 12612355, 19819415, 27747181, 138735905]

約数ペア:

[(1, 138735905), (5, 27747181), (7, 19819415), (11, 12612355), (35, 3963883), (49, 2831345), (55, 2522471), (77, 1801765), (245, 566269), (385, 360353), (539, 257395), (2695, 51479)]