211328275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 290070720

約数和(自身を除く): 78742445

約数列:

[1, 5, 17, 25, 37, 85, 89, 151, 185, 425, 445, 629, 755, 925, 1513, 2225, 2567, 3145, 3293, 3775, 5587, 7565, 12835, 13439, 15725, 16465, 27935, 37825, 55981, 64175, 67195, 82325, 94979, 139675, 228463, 279905, 335975, 474895, 497243, 1142315, 1399525, 2374475, 2486215, 5711575, 8453131, 12431075, 42265655, 211328275]

約数ペア:

[(1, 211328275), (5, 42265655), (17, 12431075), (25, 8453131), (37, 5711575), (85, 2486215), (89, 2374475), (151, 1399525), (185, 1142315), (425, 497243), (445, 474895), (629, 335975), (755, 279905), (925, 228463), (1513, 139675), (2225, 94979), (2567, 82325), (3145, 67195), (3293, 64175), (3775, 55981), (5587, 37825), (7565, 27935), (12835, 16465), (13439, 15725)]