81638760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5717}}^1$

素因数の和:5755

約数の個数: 128

約数和(自身を含む): 296421120

約数和(自身を除く): 214782360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 5717, 7140, 11434, 14280, 17151, 22868, 28585, 34302, 40019, 45736, 57170, 68604, 80038, 85755, 97189, 114340, 120057, 137208, 160076, 171510, 194378, 200095, 228680, 240114, 291567, 320152, 343020, 388756, 400190, 480228, 485945, 583134, 600285, 680323, 686040, 777512, 800380, 960456, 971890, 1166268, 1200570, 1360646, 1457835, 1600760, 1943780, 2040969, 2332536, 2401140, 2721292, 2915670, 3401615, 3887560, 4081938, 4802280, 5442584, 5831340, 6803230, 8163876, 10204845, 11662680, 13606460, 16327752, 20409690, 27212920, 40819380, 81638760]

約数ペア:

[(1, 81638760), (2, 40819380), (3, 27212920), (4, 20409690), (5, 16327752), (6, 13606460), (7, 11662680), (8, 10204845), (10, 8163876), (12, 6803230), (14, 5831340), (15, 5442584), (17, 4802280), (20, 4081938), (21, 3887560), (24, 3401615), (28, 2915670), (30, 2721292), (34, 2401140), (35, 2332536), (40, 2040969), (42, 1943780), (51, 1600760), (56, 1457835), (60, 1360646), (68, 1200570), (70, 1166268), (84, 971890), (85, 960456), (102, 800380), (105, 777512), (119, 686040), (120, 680323), (136, 600285), (140, 583134), (168, 485945), (170, 480228), (204, 400190), (210, 388756), (238, 343020), (255, 320152), (280, 291567), (340, 240114), (357, 228680), (408, 200095), (420, 194378), (476, 171510), (510, 160076), (595, 137208), (680, 120057), (714, 114340), (840, 97189), (952, 85755), (1020, 80038), (1190, 68604), (1428, 57170), (1785, 45736), (2040, 40019), (2380, 34302), (2856, 28585), (3570, 22868), (4760, 17151), (5717, 14280), (7140, 11434)]