20165354825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{16141}}^1$

素因数の和:16239

約数の個数: 72

約数和(自身を含む): 31945663680

約数和(自身を除く): 11780308855

約数列:

[1, 5, 7, 11, 25, 35, 55, 59, 77, 121, 175, 275, 295, 385, 413, 605, 649, 847, 1475, 1925, 2065, 3025, 3245, 4235, 4543, 7139, 10325, 16141, 16225, 21175, 22715, 35695, 49973, 80705, 112987, 113575, 177551, 178475, 249865, 403525, 564935, 887755, 952319, 1242857, 1249325, 1953061, 2824675, 4438775, 4761595, 6214285, 6666233, 9765305, 10475509, 13671427, 23807975, 31071425, 33331165, 48826525, 52377545, 68357135, 73328563, 115230599, 166655825, 261887725, 341785675, 366642815, 576152995, 806614193, 1833214075, 2880764975, 4033070965, 20165354825]

約数ペア:

[(1, 20165354825), (5, 4033070965), (7, 2880764975), (11, 1833214075), (25, 806614193), (35, 576152995), (55, 366642815), (59, 341785675), (77, 261887725), (121, 166655825), (175, 115230599), (275, 73328563), (295, 68357135), (385, 52377545), (413, 48826525), (605, 33331165), (649, 31071425), (847, 23807975), (1475, 13671427), (1925, 10475509), (2065, 9765305), (3025, 6666233), (3245, 6214285), (4235, 4761595), (4543, 4438775), (7139, 2824675), (10325, 1953061), (16141, 1249325), (16225, 1242857), (21175, 952319), (22715, 887755), (35695, 564935), (49973, 403525), (80705, 249865), (112987, 178475), (113575, 177551)]