81117025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{743}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 110153664

約数和(自身を除く): 29036639

約数列:

[1, 5, 11, 25, 55, 275, 397, 743, 1985, 3715, 4367, 8173, 9925, 18575, 21835, 40865, 109175, 204325, 294971, 1474855, 3244681, 7374275, 16223405, 81117025]

約数ペア:

[(1, 81117025), (5, 16223405), (11, 7374275), (25, 3244681), (55, 1474855), (275, 294971), (397, 204325), (743, 109175), (1985, 40865), (3715, 21835), (4367, 18575), (8173, 9925)]