28408705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23003}}^1$

素因数の和:23040

約数の個数: 16

約数和(自身を含む): 38646720

約数和(自身を除く): 10238015

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 23003, 115015, 299039, 437057, 1495195, 2185285, 5681741, 28408705]

約数ペア:

[(1, 28408705), (5, 5681741), (13, 2185285), (19, 1495195), (65, 437057), (95, 299039), (247, 115015), (1235, 23003)]