80891005

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{3301}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 108767880

約数和(自身を除く): 27876875

約数列:

[1, 5, 13, 29, 65, 145, 169, 377, 845, 1885, 3301, 4901, 16505, 24505, 42913, 95729, 214565, 478645, 557869, 1244477, 2789345, 6222385, 16178201, 80891005]

約数ペア:

[(1, 80891005), (5, 16178201), (13, 6222385), (29, 2789345), (65, 1244477), (145, 557869), (169, 478645), (377, 214565), (845, 95729), (1885, 42913), (3301, 24505), (4901, 16505)]