131219620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4129}}^1$

素因数の和:4372

約数の個数: 48

約数和(自身を含む): 316391040

約数和(自身を除く): 185171420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 908, 1135, 1589, 2270, 3178, 4129, 4540, 6356, 7945, 8258, 15890, 16516, 20645, 28903, 31780, 41290, 57806, 82580, 115612, 144515, 289030, 578060, 937283, 1874566, 3749132, 4686415, 6560981, 9372830, 13121962, 18745660, 26243924, 32804905, 65609810, 131219620]

約数ペア:

[(1, 131219620), (2, 65609810), (4, 32804905), (5, 26243924), (7, 18745660), (10, 13121962), (14, 9372830), (20, 6560981), (28, 4686415), (35, 3749132), (70, 1874566), (140, 937283), (227, 578060), (454, 289030), (908, 144515), (1135, 115612), (1589, 82580), (2270, 57806), (3178, 41290), (4129, 31780), (4540, 28903), (6356, 20645), (7945, 16516), (8258, 15890)]