399133055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{25943}}^1$

素因数の和:26146

約数の個数: 16

約数和(自身を含む): 509955264

約数和(自身を除く): 110822209

約数列:

[1, 5, 17, 85, 181, 905, 3077, 15385, 25943, 129715, 441031, 2205155, 4695683, 23478415, 79826611, 399133055]

約数ペア:

[(1, 399133055), (5, 79826611), (17, 23478415), (85, 4695683), (181, 2205155), (905, 441031), (3077, 129715), (15385, 25943)]