18255875

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 48

約数和(自身を含む): 26889408

約数和(自身を除く): 8633533

約数列:

[1, 5, 11, 17, 25, 55, 71, 85, 121, 125, 187, 275, 355, 425, 605, 781, 935, 1207, 1375, 1775, 2057, 2125, 3025, 3905, 4675, 6035, 8591, 8875, 10285, 13277, 15125, 19525, 23375, 30175, 42955, 51425, 66385, 97625, 146047, 150875, 214775, 257125, 331925, 730235, 1073875, 1659625, 3651175, 18255875]

約数ペア:

[(1, 18255875), (5, 3651175), (11, 1659625), (17, 1073875), (25, 730235), (55, 331925), (71, 257125), (85, 214775), (121, 150875), (125, 146047), (187, 97625), (275, 66385), (355, 51425), (425, 42955), (605, 30175), (781, 23375), (935, 19525), (1207, 15125), (1375, 13277), (1775, 10285), (2057, 8875), (2125, 8591), (3025, 6035), (3905, 4675)]