39255775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:172

約数の個数: 36

約数和(自身を含む): 54671848

約数和(自身を除く): 15416073

約数列:

[1, 5, 13, 25, 43, 53, 65, 215, 265, 325, 559, 689, 1075, 1325, 2279, 2795, 2809, 3445, 11395, 13975, 14045, 17225, 29627, 36517, 56975, 70225, 120787, 148135, 182585, 603935, 740675, 912925, 1570231, 3019675, 7851155, 39255775]

約数ペア:

[(1, 39255775), (5, 7851155), (13, 3019675), (25, 1570231), (43, 912925), (53, 740675), (65, 603935), (215, 182585), (265, 148135), (325, 120787), (559, 70225), (689, 56975), (1075, 36517), (1325, 29627), (2279, 17225), (2795, 14045), (2809, 13975), (3445, 11395)]