20178302575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{131519}}^1$

素因数の和:131584

約数の個数: 36

約数和(自身を含む): 27960888960

約数和(自身を除く): 7782586385

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 361, 425, 475, 1615, 1805, 6137, 8075, 9025, 30685, 131519, 153425, 657595, 2235823, 2498861, 3287975, 11179115, 12494305, 42480637, 47478359, 55895575, 62471525, 212403185, 237391795, 807132103, 1062015925, 1186958975, 4035660515, 20178302575]

約数ペア:

[(1, 20178302575), (5, 4035660515), (17, 1186958975), (19, 1062015925), (25, 807132103), (85, 237391795), (95, 212403185), (323, 62471525), (361, 55895575), (425, 47478359), (475, 42480637), (1615, 12494305), (1805, 11179115), (6137, 3287975), (8075, 2498861), (9025, 2235823), (30685, 657595), (131519, 153425)]