26657680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 71495424

約数和(自身を除く): 44837744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 181, 263, 280, 362, 526, 560, 724, 905, 1052, 1267, 1315, 1448, 1810, 1841, 2104, 2534, 2630, 2896, 3620, 3682, 4208, 5068, 5260, 6335, 7240, 7364, 9205, 10136, 10520, 12670, 14480, 14728, 18410, 20272, 21040, 25340, 29456, 36820, 47603, 50680, 73640, 95206, 101360, 147280, 190412, 238015, 333221, 380824, 476030, 666442, 761648, 952060, 1332884, 1666105, 1904120, 2665768, 3332210, 3808240, 5331536, 6664420, 13328840, 26657680]

約数ペア:

[(1, 26657680), (2, 13328840), (4, 6664420), (5, 5331536), (7, 3808240), (8, 3332210), (10, 2665768), (14, 1904120), (16, 1666105), (20, 1332884), (28, 952060), (35, 761648), (40, 666442), (56, 476030), (70, 380824), (80, 333221), (112, 238015), (140, 190412), (181, 147280), (263, 101360), (280, 95206), (362, 73640), (526, 50680), (560, 47603), (724, 36820), (905, 29456), (1052, 25340), (1267, 21040), (1315, 20272), (1448, 18410), (1810, 14728), (1841, 14480), (2104, 12670), (2534, 10520), (2630, 10136), (2896, 9205), (3620, 7364), (3682, 7240), (4208, 6335), (5068, 5260)]