4005865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 5112000

約数和(自身を除く): 1106135

約数列:

[1, 5, 19, 95, 149, 283, 745, 1415, 2831, 5377, 14155, 26885, 42167, 210835, 801173, 4005865]

約数ペア:

[(1, 4005865), (5, 801173), (19, 210835), (95, 42167), (149, 26885), (283, 14155), (745, 5377), (1415, 2831)]