1996403968

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{523}}^1$

素因数の和:620

約数の個数: 144

約数和(自身を含む): 4558414336

約数和(自身を除く): 2562010368

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 37, 52, 62, 64, 74, 104, 124, 128, 148, 208, 248, 256, 296, 403, 416, 481, 496, 523, 592, 806, 832, 962, 992, 1046, 1147, 1184, 1612, 1664, 1924, 1984, 2092, 2294, 2368, 3224, 3328, 3848, 3968, 4184, 4588, 4736, 6448, 6799, 7696, 7936, 8368, 9176, 9472, 12896, 13598, 14911, 15392, 16213, 16736, 18352, 19351, 25792, 27196, 29822, 30784, 32426, 33472, 36704, 38702, 51584, 54392, 59644, 61568, 64852, 66944, 73408, 77404, 103168, 108784, 119288, 123136, 129704, 133888, 146816, 154808, 210769, 217568, 238576, 251563, 259408, 293632, 309616, 421538, 435136, 477152, 503126, 518816, 599881, 619232, 843076, 870272, 954304, 1006252, 1037632, 1199762, 1238464, 1686152, 1740544, 1908608, 2012504, 2075264, 2399524, 2476928, 3372304, 3817216, 4025008, 4150528, 4799048, 4953856, 6744608, 7798453, 8050016, 9598096, 13489216, 15596906, 16100032, 19196192, 26978432, 31193812, 32200064, 38392384, 53956864, 62387624, 64400128, 76784768, 124775248, 153569536, 249550496, 499100992, 998201984, 1996403968]

約数ペア:

[(1, 1996403968), (2, 998201984), (4, 499100992), (8, 249550496), (13, 153569536), (16, 124775248), (26, 76784768), (31, 64400128), (32, 62387624), (37, 53956864), (52, 38392384), (62, 32200064), (64, 31193812), (74, 26978432), (104, 19196192), (124, 16100032), (128, 15596906), (148, 13489216), (208, 9598096), (248, 8050016), (256, 7798453), (296, 6744608), (403, 4953856), (416, 4799048), (481, 4150528), (496, 4025008), (523, 3817216), (592, 3372304), (806, 2476928), (832, 2399524), (962, 2075264), (992, 2012504), (1046, 1908608), (1147, 1740544), (1184, 1686152), (1612, 1238464), (1664, 1199762), (1924, 1037632), (1984, 1006252), (2092, 954304), (2294, 870272), (2368, 843076), (3224, 619232), (3328, 599881), (3848, 518816), (3968, 503126), (4184, 477152), (4588, 435136), (4736, 421538), (6448, 309616), (6799, 293632), (7696, 259408), (7936, 251563), (8368, 238576), (9176, 217568), (9472, 210769), (12896, 154808), (13598, 146816), (14911, 133888), (15392, 129704), (16213, 123136), (16736, 119288), (18352, 108784), (19351, 103168), (25792, 77404), (27196, 73408), (29822, 66944), (30784, 64852), (32426, 61568), (33472, 59644), (36704, 54392), (38702, 51584)]