158963405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 207360000

約数和(自身を除く): 48396595

約数列:

[1, 5, 19, 59, 79, 95, 295, 359, 395, 1121, 1501, 1795, 4661, 5605, 6821, 7505, 21181, 23305, 28361, 34105, 88559, 105905, 141805, 402439, 442795, 538859, 1673299, 2012195, 2694295, 8366495, 31792681, 158963405]

約数ペア:

[(1, 158963405), (5, 31792681), (19, 8366495), (59, 2694295), (79, 2012195), (95, 1673299), (295, 538859), (359, 442795), (395, 402439), (1121, 141805), (1501, 105905), (1795, 88559), (4661, 34105), (5605, 28361), (6821, 23305), (7505, 21181)]