19995648

素因数分解:

$2^{10}\times 3^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:329

約数の個数: 88

約数和(自身を含む): 55809408

約数和(自身を除く): 35813760

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 128, 138, 184, 192, 256, 276, 283, 368, 384, 512, 552, 566, 736, 768, 849, 1024, 1104, 1132, 1472, 1536, 1698, 2208, 2264, 2944, 3072, 3396, 4416, 4528, 5888, 6509, 6792, 8832, 9056, 11776, 13018, 13584, 17664, 18112, 19527, 23552, 26036, 27168, 35328, 36224, 39054, 52072, 54336, 70656, 72448, 78108, 104144, 108672, 144896, 156216, 208288, 217344, 289792, 312432, 416576, 434688, 624864, 833152, 869376, 1249728, 1666304, 2499456, 3332608, 4998912, 6665216, 9997824, 19995648]

約数ペア:

[(1, 19995648), (2, 9997824), (3, 6665216), (4, 4998912), (6, 3332608), (8, 2499456), (12, 1666304), (16, 1249728), (23, 869376), (24, 833152), (32, 624864), (46, 434688), (48, 416576), (64, 312432), (69, 289792), (92, 217344), (96, 208288), (128, 156216), (138, 144896), (184, 108672), (192, 104144), (256, 78108), (276, 72448), (283, 70656), (368, 54336), (384, 52072), (512, 39054), (552, 36224), (566, 35328), (736, 27168), (768, 26036), (849, 23552), (1024, 19527), (1104, 18112), (1132, 17664), (1472, 13584), (1536, 13018), (1698, 11776), (2208, 9056), (2264, 8832), (2944, 6792), (3072, 6509), (3396, 5888), (4416, 4528)]