261036295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1\times {\mathrm{349}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 348566400

約数和(自身を除く): 87530105

約数列:

[1, 5, 13, 37, 65, 185, 311, 349, 481, 1555, 1745, 2405, 4043, 4537, 11507, 12913, 20215, 22685, 57535, 64565, 108539, 149591, 167869, 542695, 747955, 839345, 1411007, 4015943, 7055035, 20079715, 52207259, 261036295]

約数ペア:

[(1, 261036295), (5, 52207259), (13, 20079715), (37, 7055035), (65, 4015943), (185, 1411007), (311, 839345), (349, 747955), (481, 542695), (1555, 167869), (1745, 149591), (2405, 108539), (4043, 64565), (4537, 57535), (11507, 22685), (12913, 20215)]