139202840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{497153}}^1$

素因数の和:497171

約数の個数: 32

約数和(自身を含む): 357950880

約数和(自身を除く): 218748040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 497153, 994306, 1988612, 2485765, 3480071, 3977224, 4971530, 6960142, 9943060, 13920284, 17400355, 19886120, 27840568, 34800710, 69601420, 139202840]

約数ペア:

[(1, 139202840), (2, 69601420), (4, 34800710), (5, 27840568), (7, 19886120), (8, 17400355), (10, 13920284), (14, 9943060), (20, 6960142), (28, 4971530), (35, 3977224), (40, 3480071), (56, 2485765), (70, 1988612), (140, 994306), (280, 497153)]