20128255

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{33829}}^1$

素因数の和:33858

約数の個数: 16

約数和(自身を含む): 29229120

約数和(自身を除く): 9100865

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 33829, 169145, 236803, 575093, 1184015, 2875465, 4025651, 20128255]

約数ペア:

[(1, 20128255), (5, 4025651), (7, 2875465), (17, 1184015), (35, 575093), (85, 236803), (119, 169145), (595, 33829)]