25478260

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12613}}^1$

素因数の和:12723

約数の個数: 24

約数和(自身を含む): 54038376

約数和(自身を除く): 28560116

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 12613, 25226, 50452, 63065, 126130, 252260, 1273913, 2547826, 5095652, 6369565, 12739130, 25478260]

約数ペア:

[(1, 25478260), (2, 12739130), (4, 6369565), (5, 5095652), (10, 2547826), (20, 1273913), (101, 252260), (202, 126130), (404, 63065), (505, 50452), (1010, 25226), (2020, 12613)]