78780455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39097}}^1$

素因数の和:39146

約数の個数: 16

約数和(自身を含む): 105095424

約数和(自身を除く): 26314969

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 39097, 195485, 508261, 1212007, 2541305, 6060035, 15756091, 78780455]

約数ペア:

[(1, 78780455), (5, 15756091), (13, 6060035), (31, 2541305), (65, 1212007), (155, 508261), (403, 195485), (2015, 39097)]