20123216768

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{49547}}^1$

素因数の和:49747

約数の個数: 64

約数和(自身を含む): 42452726400

約数和(自身を除く): 22329509632

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 167, 304, 334, 608, 668, 1216, 1336, 2432, 2672, 3173, 5344, 6346, 10688, 12692, 21376, 25384, 49547, 50768, 99094, 101536, 198188, 203072, 396376, 406144, 792752, 941393, 1585504, 1882786, 3171008, 3765572, 6342016, 7531144, 8274349, 15062288, 16548698, 30124576, 33097396, 60249152, 66194792, 120498304, 132389584, 157212631, 264779168, 314425262, 529558336, 628850524, 1059116672, 1257701048, 2515402096, 5030804192, 10061608384, 20123216768]

約数ペア:

[(1, 20123216768), (2, 10061608384), (4, 5030804192), (8, 2515402096), (16, 1257701048), (19, 1059116672), (32, 628850524), (38, 529558336), (64, 314425262), (76, 264779168), (128, 157212631), (152, 132389584), (167, 120498304), (304, 66194792), (334, 60249152), (608, 33097396), (668, 30124576), (1216, 16548698), (1336, 15062288), (2432, 8274349), (2672, 7531144), (3173, 6342016), (5344, 3765572), (6346, 3171008), (10688, 1882786), (12692, 1585504), (21376, 941393), (25384, 792752), (49547, 406144), (50768, 396376), (99094, 203072), (101536, 198188)]