19882125

素因数分解:

$3^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 37889280

約数和(自身を除く): 18007155

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 129, 135, 137, 215, 225, 375, 387, 411, 645, 675, 685, 1075, 1125, 1161, 1233, 1935, 2055, 3225, 3375, 3425, 3699, 5375, 5805, 5891, 6165, 9675, 10275, 16125, 17125, 17673, 18495, 29025, 29455, 30825, 48375, 51375, 53019, 88365, 92475, 145125, 147275, 154125, 159057, 265095, 441825, 462375, 736375, 795285, 1325475, 2209125, 3976425, 6627375, 19882125]

約数ペア:

[(1, 19882125), (3, 6627375), (5, 3976425), (9, 2209125), (15, 1325475), (25, 795285), (27, 736375), (43, 462375), (45, 441825), (75, 265095), (125, 159057), (129, 154125), (135, 147275), (137, 145125), (215, 92475), (225, 88365), (375, 53019), (387, 51375), (411, 48375), (645, 30825), (675, 29455), (685, 29025), (1075, 18495), (1125, 17673), (1161, 17125), (1233, 16125), (1935, 10275), (2055, 9675), (3225, 6165), (3375, 5891), (3425, 5805), (3699, 5375)]