19959958655

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{8573}}^1$

素因数の和:8665

約数の個数: 96

約数和(自身を含む): 32513431104

約数和(自身を除く): 12553472449

約数列:

[1, 5, 7, 13, 17, 35, 43, 49, 65, 85, 91, 119, 215, 221, 245, 301, 455, 559, 595, 637, 731, 833, 1105, 1505, 1547, 2107, 2795, 3185, 3655, 3913, 4165, 5117, 7735, 8573, 9503, 10535, 10829, 19565, 25585, 27391, 35819, 42865, 47515, 54145, 60011, 66521, 111449, 136955, 145741, 179095, 300055, 332605, 368639, 420077, 465647, 557245, 728705, 780143, 1020187, 1843195, 1894633, 2100385, 2328235, 2580473, 3900715, 4792307, 5100935, 5461001, 6266863, 7141309, 9473165, 12902365, 13262431, 18063311, 23961535, 27305005, 31334315, 33546149, 35706545, 43868041, 66312155, 81469219, 90316555, 92837017, 167730745, 219340205, 234823043, 307076287, 407346095, 464185085, 570284533, 1174115215, 1535381435, 2851422665, 3991991731, 19959958655]

約数ペア:

[(1, 19959958655), (5, 3991991731), (7, 2851422665), (13, 1535381435), (17, 1174115215), (35, 570284533), (43, 464185085), (49, 407346095), (65, 307076287), (85, 234823043), (91, 219340205), (119, 167730745), (215, 92837017), (221, 90316555), (245, 81469219), (301, 66312155), (455, 43868041), (559, 35706545), (595, 33546149), (637, 31334315), (731, 27305005), (833, 23961535), (1105, 18063311), (1505, 13262431), (1547, 12902365), (2107, 9473165), (2795, 7141309), (3185, 6266863), (3655, 5461001), (3913, 5100935), (4165, 4792307), (5117, 3900715), (7735, 2580473), (8573, 2328235), (9503, 2100385), (10535, 1894633), (10829, 1843195), (19565, 1020187), (25585, 780143), (27391, 728705), (35819, 557245), (42865, 465647), (47515, 420077), (54145, 368639), (60011, 332605), (66521, 300055), (111449, 179095), (136955, 145741)]