259740545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 339033600

約数和(自身を除く): 79293055

約数列:

[1, 5, 19, 53, 79, 95, 265, 395, 653, 1007, 1501, 3265, 4187, 5035, 7505, 12407, 20935, 34609, 51587, 62035, 79553, 173045, 257935, 397765, 657571, 980153, 2734111, 3287855, 4900765, 13670555, 51948109, 259740545]

約数ペア:

[(1, 259740545), (5, 51948109), (19, 13670555), (53, 4900765), (79, 3287855), (95, 2734111), (265, 980153), (395, 657571), (653, 397765), (1007, 257935), (1501, 173045), (3265, 79553), (4187, 62035), (5035, 51587), (7505, 34609), (12407, 20935)]