12972020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{38153}}^1$

素因数の和:38179

約数の個数: 24

約数和(自身を含む): 28844424

約数和(自身を除く): 15872404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 38153, 76306, 152612, 190765, 381530, 648601, 763060, 1297202, 2594404, 3243005, 6486010, 12972020]

約数ペア:

[(1, 12972020), (2, 6486010), (4, 3243005), (5, 2594404), (10, 1297202), (17, 763060), (20, 648601), (34, 381530), (68, 190765), (85, 152612), (170, 76306), (340, 38153)]