20676880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36923}}^1$

素因数の和:36943

約数の個数: 40

約数和(自身を含む): 54942912

約数和(自身を除く): 34266032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36923, 73846, 147692, 184615, 258461, 295384, 369230, 516922, 590768, 738460, 1033844, 1292305, 1476920, 2067688, 2584610, 2953840, 4135376, 5169220, 10338440, 20676880]

約数ペア:

[(1, 20676880), (2, 10338440), (4, 5169220), (5, 4135376), (7, 2953840), (8, 2584610), (10, 2067688), (14, 1476920), (16, 1292305), (20, 1033844), (28, 738460), (35, 590768), (40, 516922), (56, 369230), (70, 295384), (80, 258461), (112, 184615), (140, 147692), (280, 73846), (560, 36923)]