20165980175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{4373}}^1$

素因数の和:4844

約数の個数: 48

約数和(自身を含む): 28019144160

約数和(自身を除く): 7853163985

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 409, 451, 1025, 2045, 2255, 4373, 4499, 10225, 11275, 16769, 21865, 22495, 48103, 83845, 109325, 112475, 179293, 184459, 240515, 419225, 896465, 922295, 1202575, 1788557, 1972223, 4482325, 4611475, 8942785, 9861115, 19674127, 44713925, 49305575, 73330837, 98370635, 366654185, 491853175, 806639207, 1833270925, 4033196035, 20165980175]

約数ペア:

[(1, 20165980175), (5, 4033196035), (11, 1833270925), (25, 806639207), (41, 491853175), (55, 366654185), (205, 98370635), (275, 73330837), (409, 49305575), (451, 44713925), (1025, 19674127), (2045, 9861115), (2255, 8942785), (4373, 4611475), (4499, 4482325), (10225, 1972223), (11275, 1788557), (16769, 1202575), (21865, 922295), (22495, 896465), (48103, 419225), (83845, 240515), (109325, 184459), (112475, 179293)]