81035520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 264902400

約数和(自身を除く): 183866880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 128, 141, 160, 188, 192, 235, 240, 256, 282, 320, 376, 384, 449, 470, 480, 564, 640, 705, 752, 768, 898, 940, 960, 1128, 1280, 1347, 1410, 1504, 1796, 1880, 1920, 2245, 2256, 2694, 2820, 3008, 3592, 3760, 3840, 4490, 4512, 5388, 5640, 6016, 6735, 7184, 7520, 8980, 9024, 10776, 11280, 12032, 13470, 14368, 15040, 17960, 18048, 21103, 21552, 22560, 26940, 28736, 30080, 35920, 36096, 42206, 43104, 45120, 53880, 57472, 60160, 63309, 71840, 84412, 86208, 90240, 105515, 107760, 114944, 126618, 143680, 168824, 172416, 180480, 211030, 215520, 253236, 287360, 316545, 337648, 344832, 422060, 431040, 506472, 574720, 633090, 675296, 844120, 862080, 1012944, 1266180, 1350592, 1688240, 1724160, 2025888, 2532360, 2701184, 3376480, 4051776, 5064720, 5402368, 6752960, 8103552, 10129440, 13505920, 16207104, 20258880, 27011840, 40517760, 81035520]

約数ペア:

[(1, 81035520), (2, 40517760), (3, 27011840), (4, 20258880), (5, 16207104), (6, 13505920), (8, 10129440), (10, 8103552), (12, 6752960), (15, 5402368), (16, 5064720), (20, 4051776), (24, 3376480), (30, 2701184), (32, 2532360), (40, 2025888), (47, 1724160), (48, 1688240), (60, 1350592), (64, 1266180), (80, 1012944), (94, 862080), (96, 844120), (120, 675296), (128, 633090), (141, 574720), (160, 506472), (188, 431040), (192, 422060), (235, 344832), (240, 337648), (256, 316545), (282, 287360), (320, 253236), (376, 215520), (384, 211030), (449, 180480), (470, 172416), (480, 168824), (564, 143680), (640, 126618), (705, 114944), (752, 107760), (768, 105515), (898, 90240), (940, 86208), (960, 84412), (1128, 71840), (1280, 63309), (1347, 60160), (1410, 57472), (1504, 53880), (1796, 45120), (1880, 43104), (1920, 42206), (2245, 36096), (2256, 35920), (2694, 30080), (2820, 28736), (3008, 26940), (3592, 22560), (3760, 21552), (3840, 21103), (4490, 18048), (4512, 17960), (5388, 15040), (5640, 14368), (6016, 13470), (6735, 12032), (7184, 11280), (7520, 10776), (8980, 9024)]