209440465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{111109}}^1$

素因数の和:111156

約数の個数: 16

約数和(自身を含む): 279997200

約数和(自身を除く): 70556735

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 111109, 555545, 1444417, 3222161, 7222085, 16110805, 41888093, 209440465]

約数ペア:

[(1, 209440465), (5, 41888093), (13, 16110805), (29, 7222085), (65, 3222161), (145, 1444417), (377, 555545), (1885, 111109)]