257480860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6151}}^1$

素因数の和:6203

約数の個数: 96

約数和(自身を含む): 694536192

約数和(自身を除く): 437055332

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 805, 910, 1196, 1495, 1610, 1820, 2093, 2990, 3220, 4186, 5980, 6151, 8372, 10465, 12302, 20930, 24604, 30755, 41860, 43057, 61510, 79963, 86114, 123020, 141473, 159926, 172228, 215285, 282946, 319852, 399815, 430570, 559741, 565892, 707365, 799630, 861140, 990311, 1119482, 1414730, 1599260, 1839149, 1980622, 2238964, 2798705, 2829460, 3678298, 3961244, 4951555, 5597410, 7356596, 9195745, 9903110, 11194820, 12874043, 18391490, 19806220, 25748086, 36782980, 51496172, 64370215, 128740430, 257480860]

約数ペア:

[(1, 257480860), (2, 128740430), (4, 64370215), (5, 51496172), (7, 36782980), (10, 25748086), (13, 19806220), (14, 18391490), (20, 12874043), (23, 11194820), (26, 9903110), (28, 9195745), (35, 7356596), (46, 5597410), (52, 4951555), (65, 3961244), (70, 3678298), (91, 2829460), (92, 2798705), (115, 2238964), (130, 1980622), (140, 1839149), (161, 1599260), (182, 1414730), (230, 1119482), (260, 990311), (299, 861140), (322, 799630), (364, 707365), (455, 565892), (460, 559741), (598, 430570), (644, 399815), (805, 319852), (910, 282946), (1196, 215285), (1495, 172228), (1610, 159926), (1820, 141473), (2093, 123020), (2990, 86114), (3220, 79963), (4186, 61510), (5980, 43057), (6151, 41860), (8372, 30755), (10465, 24604), (12302, 20930)]