121780555

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{4649}}^1$

素因数の和:4711

約数の個数: 24

約数和(自身を含む): 163382400

約数和(自身を除く): 41601845

約数列:

[1, 5, 13, 31, 65, 155, 169, 403, 845, 2015, 4649, 5239, 23245, 26195, 60437, 144119, 302185, 720595, 785681, 1873547, 3928405, 9367735, 24356111, 121780555]

約数ペア:

[(1, 121780555), (5, 24356111), (13, 9367735), (31, 3928405), (65, 1873547), (155, 785681), (169, 720595), (403, 302185), (845, 144119), (2015, 60437), (4649, 26195), (5239, 23245)]