80872870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1567}}^1$

素因数の和:1984

約数の個数: 32

約数和(自身を含む): 157264128

約数和(自身を除く): 76391258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397, 794, 1567, 1985, 3134, 3970, 5161, 7835, 10322, 15670, 20371, 25805, 40742, 51610, 101855, 203710, 622099, 1244198, 3110495, 6220990, 8087287, 16174574, 40436435, 80872870]

約数ペア:

[(1, 80872870), (2, 40436435), (5, 16174574), (10, 8087287), (13, 6220990), (26, 3110495), (65, 1244198), (130, 622099), (397, 203710), (794, 101855), (1567, 51610), (1985, 40742), (3134, 25805), (3970, 20371), (5161, 15670), (7835, 10322)]