90291565

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{28349}}^1$

素因数の和:28381

約数の個数: 24

約数和(自身を含む): 135739800

約数和(自身を除く): 45448235

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 28349, 141745, 198443, 368537, 992215, 1389101, 1842685, 2579759, 6945505, 12898795, 18058313, 90291565]

約数ペア:

[(1, 90291565), (5, 18058313), (7, 12898795), (13, 6945505), (35, 2579759), (49, 1842685), (65, 1389101), (91, 992215), (245, 368537), (455, 198443), (637, 141745), (3185, 28349)]