28971865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23459}}^1$

素因数の和:23496

約数の個数: 16

約数和(自身を含む): 39412800

約数和(自身を除く): 10440935

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 23459, 117295, 304967, 445721, 1524835, 2228605, 5794373, 28971865]

約数ペア:

[(1, 28971865), (5, 5794373), (13, 2228605), (19, 1524835), (65, 445721), (95, 304967), (247, 117295), (1235, 23459)]