28388945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 39137280

約数和(自身を除く): 10748335

約数列:

[1, 5, 13, 19, 65, 95, 127, 181, 247, 635, 905, 1235, 1651, 2353, 2413, 3439, 8255, 11765, 12065, 17195, 22987, 31369, 44707, 114935, 156845, 223535, 298831, 436753, 1494155, 2183765, 5677789, 28388945]

約数ペア:

[(1, 28388945), (5, 5677789), (13, 2183765), (19, 1494155), (65, 436753), (95, 298831), (127, 223535), (181, 156845), (247, 114935), (635, 44707), (905, 31369), (1235, 22987), (1651, 17195), (2353, 12065), (2413, 11765), (3439, 8255)]