20691456

素因数分解:

$2^9\times 3^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:749

約数の個数: 80

約数和(自身を含む): 58106400

約数和(自身を除く): 37414944

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 64, 76, 96, 114, 128, 152, 192, 228, 256, 304, 384, 456, 512, 608, 709, 768, 912, 1216, 1418, 1536, 1824, 2127, 2432, 2836, 3648, 4254, 4864, 5672, 7296, 8508, 9728, 11344, 13471, 14592, 17016, 22688, 26942, 29184, 34032, 40413, 45376, 53884, 68064, 80826, 90752, 107768, 136128, 161652, 181504, 215536, 272256, 323304, 363008, 431072, 544512, 646608, 862144, 1089024, 1293216, 1724288, 2586432, 3448576, 5172864, 6897152, 10345728, 20691456]

約数ペア:

[(1, 20691456), (2, 10345728), (3, 6897152), (4, 5172864), (6, 3448576), (8, 2586432), (12, 1724288), (16, 1293216), (19, 1089024), (24, 862144), (32, 646608), (38, 544512), (48, 431072), (57, 363008), (64, 323304), (76, 272256), (96, 215536), (114, 181504), (128, 161652), (152, 136128), (192, 107768), (228, 90752), (256, 80826), (304, 68064), (384, 53884), (456, 45376), (512, 40413), (608, 34032), (709, 29184), (768, 26942), (912, 22688), (1216, 17016), (1418, 14592), (1536, 13471), (1824, 11344), (2127, 9728), (2432, 8508), (2836, 7296), (3648, 5672), (4254, 4864)]