355220257

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 463916160

約数和(自身を除く): 108695903

約数列:

[1, 7, 19, 23, 49, 53, 133, 161, 313, 371, 437, 931, 1007, 1127, 1219, 2191, 2597, 3059, 5947, 7049, 7199, 8533, 15337, 16589, 21413, 23161, 41629, 49343, 50393, 59731, 116123, 136781, 162127, 291403, 315191, 352751, 381547, 812861, 957467, 1134889, 2206337, 2670829, 6702269, 7249393, 15444359, 18695803, 50745751, 355220257]

約数ペア:

[(1, 355220257), (7, 50745751), (19, 18695803), (23, 15444359), (49, 7249393), (53, 6702269), (133, 2670829), (161, 2206337), (313, 1134889), (371, 957467), (437, 812861), (931, 381547), (1007, 352751), (1127, 315191), (1219, 291403), (2191, 162127), (2597, 136781), (3059, 116123), (5947, 59731), (7049, 50393), (7199, 49343), (8533, 41629), (15337, 23161), (16589, 21413)]