280147275

素因数分解:

$3^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{2293}}^1$

素因数の和:2493

約数の個数: 48

約数和(自身を含む): 517709920

約数和(自身を除く): 237562645

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 181, 225, 543, 675, 905, 1629, 2293, 2715, 4525, 4887, 6879, 8145, 11465, 13575, 20637, 24435, 34395, 40725, 57325, 61911, 103185, 122175, 171975, 309555, 415033, 515925, 1245099, 1547775, 2075165, 3735297, 6225495, 10375825, 11205891, 18676485, 31127475, 56029455, 93382425, 280147275]

約数ペア:

[(1, 280147275), (3, 93382425), (5, 56029455), (9, 31127475), (15, 18676485), (25, 11205891), (27, 10375825), (45, 6225495), (75, 3735297), (135, 2075165), (181, 1547775), (225, 1245099), (543, 515925), (675, 415033), (905, 309555), (1629, 171975), (2293, 122175), (2715, 103185), (4525, 61911), (4887, 57325), (6879, 40725), (8145, 34395), (11465, 24435), (13575, 20637)]