20258880

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:516

約数の個数: 112

約数和(自身を含む): 65836800

約数和(自身を除く): 45577920

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, 141, 160, 188, 192, 235, 240, 282, 320, 376, 449, 470, 480, 564, 705, 752, 898, 940, 960, 1128, 1347, 1410, 1504, 1796, 1880, 2245, 2256, 2694, 2820, 3008, 3592, 3760, 4490, 4512, 5388, 5640, 6735, 7184, 7520, 8980, 9024, 10776, 11280, 13470, 14368, 15040, 17960, 21103, 21552, 22560, 26940, 28736, 35920, 42206, 43104, 45120, 53880, 63309, 71840, 84412, 86208, 105515, 107760, 126618, 143680, 168824, 211030, 215520, 253236, 316545, 337648, 422060, 431040, 506472, 633090, 675296, 844120, 1012944, 1266180, 1350592, 1688240, 2025888, 2532360, 3376480, 4051776, 5064720, 6752960, 10129440, 20258880]

約数ペア:

[(1, 20258880), (2, 10129440), (3, 6752960), (4, 5064720), (5, 4051776), (6, 3376480), (8, 2532360), (10, 2025888), (12, 1688240), (15, 1350592), (16, 1266180), (20, 1012944), (24, 844120), (30, 675296), (32, 633090), (40, 506472), (47, 431040), (48, 422060), (60, 337648), (64, 316545), (80, 253236), (94, 215520), (96, 211030), (120, 168824), (141, 143680), (160, 126618), (188, 107760), (192, 105515), (235, 86208), (240, 84412), (282, 71840), (320, 63309), (376, 53880), (449, 45120), (470, 43104), (480, 42206), (564, 35920), (705, 28736), (752, 26940), (898, 22560), (940, 21552), (960, 21103), (1128, 17960), (1347, 15040), (1410, 14368), (1504, 13470), (1796, 11280), (1880, 10776), (2245, 9024), (2256, 8980), (2694, 7520), (2820, 7184), (3008, 6735), (3592, 5640), (3760, 5388), (4490, 4512)]