26290460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 65021040

約数和(自身を除く): 38730580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 139, 140, 193, 196, 245, 278, 386, 490, 556, 695, 772, 965, 973, 980, 1351, 1390, 1930, 1946, 2702, 2780, 3860, 3892, 4865, 5404, 6755, 6811, 9457, 9730, 13510, 13622, 18914, 19460, 26827, 27020, 27244, 34055, 37828, 47285, 53654, 68110, 94570, 107308, 134135, 136220, 187789, 189140, 268270, 375578, 536540, 751156, 938945, 1314523, 1877890, 2629046, 3755780, 5258092, 6572615, 13145230, 26290460]

約数ペア:

[(1, 26290460), (2, 13145230), (4, 6572615), (5, 5258092), (7, 3755780), (10, 2629046), (14, 1877890), (20, 1314523), (28, 938945), (35, 751156), (49, 536540), (70, 375578), (98, 268270), (139, 189140), (140, 187789), (193, 136220), (196, 134135), (245, 107308), (278, 94570), (386, 68110), (490, 53654), (556, 47285), (695, 37828), (772, 34055), (965, 27244), (973, 27020), (980, 26827), (1351, 19460), (1390, 18914), (1930, 13622), (1946, 13510), (2702, 9730), (2780, 9457), (3860, 6811), (3892, 6755), (4865, 5404)]