161640225

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{5569}}^1$

素因数の和:5631

約数の個数: 48

約数和(自身を含む): 303899200

約数和(自身を除く): 142258975

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 675, 1075, 1161, 1935, 3225, 5569, 5805, 9675, 16707, 27845, 29025, 50121, 83535, 139225, 150363, 239467, 250605, 417675, 718401, 751815, 1197335, 1253025, 2155203, 3592005, 3759075, 5986675, 6465609, 10776015, 17960025, 32328045, 53880075, 161640225]

約数ペア:

[(1, 161640225), (3, 53880075), (5, 32328045), (9, 17960025), (15, 10776015), (25, 6465609), (27, 5986675), (43, 3759075), (45, 3592005), (75, 2155203), (129, 1253025), (135, 1197335), (215, 751815), (225, 718401), (387, 417675), (645, 250605), (675, 239467), (1075, 150363), (1161, 139225), (1935, 83535), (3225, 50121), (5569, 29025), (5805, 27845), (9675, 16707)]