20138555440

素因数分解:

$2^4\times 5^1\times {\mathrm{2029}}^1\times {\mathrm{124067}}^1$

素因数の和:126109

約数の個数: 40

約数和(自身を含む): 46845595440

約数和(自身を除く): 26707040000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2029, 4058, 8116, 10145, 16232, 20290, 32464, 40580, 81160, 124067, 162320, 248134, 496268, 620335, 992536, 1240670, 1985072, 2481340, 4962680, 9925360, 251731943, 503463886, 1006927772, 1258659715, 2013855544, 2517319430, 4027711088, 5034638860, 10069277720, 20138555440]

約数ペア:

[(1, 20138555440), (2, 10069277720), (4, 5034638860), (5, 4027711088), (8, 2517319430), (10, 2013855544), (16, 1258659715), (20, 1006927772), (40, 503463886), (80, 251731943), (2029, 9925360), (4058, 4962680), (8116, 2481340), (10145, 1985072), (16232, 1240670), (20290, 992536), (32464, 620335), (40580, 496268), (81160, 248134), (124067, 162320)]