19406075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 27217008

約数和(自身を除く): 7810933

約数列:

[1, 5, 13, 25, 29, 65, 71, 145, 325, 355, 377, 725, 841, 923, 1775, 1885, 2059, 4205, 4615, 9425, 10295, 10933, 21025, 23075, 26767, 51475, 54665, 59711, 133835, 273325, 298555, 669175, 776243, 1492775, 3881215, 19406075]

約数ペア:

[(1, 19406075), (5, 3881215), (13, 1492775), (25, 776243), (29, 669175), (65, 298555), (71, 273325), (145, 133835), (325, 59711), (355, 54665), (377, 51475), (725, 26767), (841, 23075), (923, 21025), (1775, 10933), (1885, 10295), (2059, 9425), (4205, 4615)]