1561540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{479}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 3306240

約数和(自身を除く): 1744700

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 479, 652, 815, 958, 1630, 1916, 2395, 3260, 4790, 9580, 78077, 156154, 312308, 390385, 780770, 1561540]

約数ペア:

[(1, 1561540), (2, 780770), (4, 390385), (5, 312308), (10, 156154), (20, 78077), (163, 9580), (326, 4790), (479, 3260), (652, 2395), (815, 1916), (958, 1630)]