20560960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 112

約数和(自身を含む): 57204864

約数和(自身を除く): 36643904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 67, 70, 80, 112, 134, 137, 140, 160, 224, 268, 274, 280, 320, 335, 448, 469, 536, 548, 560, 670, 685, 938, 959, 1072, 1096, 1120, 1340, 1370, 1876, 1918, 2144, 2192, 2240, 2345, 2680, 2740, 3752, 3836, 4288, 4384, 4690, 4795, 5360, 5480, 7504, 7672, 8768, 9179, 9380, 9590, 10720, 10960, 15008, 15344, 18358, 18760, 19180, 21440, 21920, 30016, 30688, 36716, 37520, 38360, 43840, 45895, 61376, 64253, 73432, 75040, 76720, 91790, 128506, 146864, 150080, 153440, 183580, 257012, 293728, 306880, 321265, 367160, 514024, 587456, 642530, 734320, 1028048, 1285060, 1468640, 2056096, 2570120, 2937280, 4112192, 5140240, 10280480, 20560960]

約数ペア:

[(1, 20560960), (2, 10280480), (4, 5140240), (5, 4112192), (7, 2937280), (8, 2570120), (10, 2056096), (14, 1468640), (16, 1285060), (20, 1028048), (28, 734320), (32, 642530), (35, 587456), (40, 514024), (56, 367160), (64, 321265), (67, 306880), (70, 293728), (80, 257012), (112, 183580), (134, 153440), (137, 150080), (140, 146864), (160, 128506), (224, 91790), (268, 76720), (274, 75040), (280, 73432), (320, 64253), (335, 61376), (448, 45895), (469, 43840), (536, 38360), (548, 37520), (560, 36716), (670, 30688), (685, 30016), (938, 21920), (959, 21440), (1072, 19180), (1096, 18760), (1120, 18358), (1340, 15344), (1370, 15008), (1876, 10960), (1918, 10720), (2144, 9590), (2192, 9380), (2240, 9179), (2345, 8768), (2680, 7672), (2740, 7504), (3752, 5480), (3836, 5360), (4288, 4795), (4384, 4690)]