19943485375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1\times {\mathrm{1033}}^1$

素因数の和:1817

約数の個数: 64

約数和(自身を含む): 28647590400

約数和(自身を除く): 8704105025

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 475, 739, 1033, 1045, 1375, 2375, 3695, 5165, 5225, 8129, 11363, 14041, 18475, 19627, 25825, 26125, 40645, 56815, 70205, 92375, 98135, 129125, 154451, 203225, 215897, 284075, 351025, 490675, 763387, 772255, 1016125, 1079485, 1420375, 1755125, 2453375, 3816935, 3861275, 5397425, 8397257, 14504353, 19084675, 19306375, 26987125, 41986285, 72521765, 95423375, 159547883, 209931425, 362608825, 797739415, 1049657125, 1813044125, 3988697075, 19943485375]

約数ペア:

[(1, 19943485375), (5, 3988697075), (11, 1813044125), (19, 1049657125), (25, 797739415), (55, 362608825), (95, 209931425), (125, 159547883), (209, 95423375), (275, 72521765), (475, 41986285), (739, 26987125), (1033, 19306375), (1045, 19084675), (1375, 14504353), (2375, 8397257), (3695, 5397425), (5165, 3861275), (5225, 3816935), (8129, 2453375), (11363, 1755125), (14041, 1420375), (18475, 1079485), (19627, 1016125), (25825, 772255), (26125, 763387), (40645, 490675), (56815, 351025), (70205, 284075), (92375, 215897), (98135, 203225), (129125, 154451)]