20457250345

素因数分解:

$5^1\times 7^2\times {\mathrm{2447}}^1\times {\mathrm{34123}}^1$

素因数の和:36589

約数の個数: 24

約数和(自身を含む): 28569158784

約数和(自身を除く): 8111908439

約数列:

[1, 5, 7, 35, 49, 245, 2447, 12235, 17129, 34123, 85645, 119903, 170615, 238861, 599515, 1194305, 1672027, 8360135, 83498981, 417494905, 584492867, 2922464335, 4091450069, 20457250345]

約数ペア:

[(1, 20457250345), (5, 4091450069), (7, 2922464335), (35, 584492867), (49, 417494905), (245, 83498981), (2447, 8360135), (12235, 1672027), (17129, 1194305), (34123, 599515), (85645, 238861), (119903, 170615)]