289272815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3299}}^1$

素因数の和:3407

約数の個数: 32

約数和(自身を含む): 399168000

約数和(自身を除く): 109895185

約数列:

[1, 5, 13, 19, 65, 71, 95, 247, 355, 923, 1235, 1349, 3299, 4615, 6745, 16495, 17537, 42887, 62681, 87685, 214435, 234229, 313405, 814853, 1171145, 3044977, 4074265, 4450351, 15224885, 22251755, 57854563, 289272815]

約数ペア:

[(1, 289272815), (5, 57854563), (13, 22251755), (19, 15224885), (65, 4450351), (71, 4074265), (95, 3044977), (247, 1171145), (355, 814853), (923, 313405), (1235, 234229), (1349, 214435), (3299, 87685), (4615, 62681), (6745, 42887), (16495, 17537)]