25202905

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 39012624

約数和(自身を除く): 13809719

約数列:

[1, 5, 7, 13, 35, 41, 49, 65, 91, 193, 205, 245, 287, 455, 533, 637, 965, 1351, 1435, 2009, 2509, 2665, 3185, 3731, 6755, 7913, 9457, 10045, 12545, 17563, 18655, 26117, 39565, 47285, 55391, 87815, 102869, 122941, 130585, 276955, 387737, 514345, 614705, 720083, 1938685, 3600415, 5040581, 25202905]

約数ペア:

[(1, 25202905), (5, 5040581), (7, 3600415), (13, 1938685), (35, 720083), (41, 614705), (49, 514345), (65, 387737), (91, 276955), (193, 130585), (205, 122941), (245, 102869), (287, 87815), (455, 55391), (533, 47285), (637, 39565), (965, 26117), (1351, 18655), (1435, 17563), (2009, 12545), (2509, 10045), (2665, 9457), (3185, 7913), (3731, 6755)]