388640915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2297}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 532768320

約数和(自身を除く): 144127405

約数列:

[1, 5, 13, 19, 65, 95, 137, 247, 685, 1235, 1781, 2297, 2603, 8905, 11485, 13015, 29861, 33839, 43643, 149305, 169195, 218215, 314689, 567359, 1573445, 2836795, 4090957, 5979091, 20454785, 29895455, 77728183, 388640915]

約数ペア:

[(1, 388640915), (5, 77728183), (13, 29895455), (19, 20454785), (65, 5979091), (95, 4090957), (137, 2836795), (247, 1573445), (685, 567359), (1235, 314689), (1781, 218215), (2297, 169195), (2603, 149305), (8905, 43643), (11485, 33839), (13015, 29861)]