78872140

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{8233}}^1$

素因数の和:8721

約数の個数: 24

約数和(自身を含む): 165997440

約数和(自身を除く): 87125300

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 8233, 9580, 16466, 32932, 41165, 82330, 164660, 3943607, 7887214, 15774428, 19718035, 39436070, 78872140]

約数ペア:

[(1, 78872140), (2, 39436070), (4, 19718035), (5, 15774428), (10, 7887214), (20, 3943607), (479, 164660), (958, 82330), (1916, 41165), (2395, 32932), (4790, 16466), (8233, 9580)]