13328840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 34594560

約数和(自身を除く): 21265720

約数列:

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

約数ペア:

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