77921620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{556583}}^1$

素因数の和:556599

約数の個数: 24

約数和(自身を含む): 187012224

約数和(自身を除く): 109090604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 556583, 1113166, 2226332, 2782915, 3896081, 5565830, 7792162, 11131660, 15584324, 19480405, 38960810, 77921620]

約数ペア:

[(1, 77921620), (2, 38960810), (4, 19480405), (5, 15584324), (7, 11131660), (10, 7792162), (14, 5565830), (20, 3896081), (28, 2782915), (35, 2226332), (70, 1113166), (140, 556583)]