20404819904

素因数分解:

$2^6\times 7^2\times {\mathrm{131}}^1\times {\mathrm{49669}}^1$

素因数の和:49826

約数の個数: 84

約数和(自身を含む): 47462069160

約数和(自身を除く): 27057249256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 131, 196, 224, 262, 392, 448, 524, 784, 917, 1048, 1568, 1834, 2096, 3136, 3668, 4192, 6419, 7336, 8384, 12838, 14672, 25676, 29344, 49669, 51352, 58688, 99338, 102704, 198676, 205408, 347683, 397352, 410816, 695366, 794704, 1390732, 1589408, 2433781, 2781464, 3178816, 4867562, 5562928, 6506639, 9735124, 11125856, 13013278, 19470248, 22251712, 26026556, 38940496, 45546473, 52053112, 77880992, 91092946, 104106224, 155761984, 182185892, 208212448, 318825311, 364371784, 416424896, 637650622, 728743568, 1275301244, 1457487136, 2550602488, 2914974272, 5101204976, 10202409952, 20404819904]

約数ペア:

[(1, 20404819904), (2, 10202409952), (4, 5101204976), (7, 2914974272), (8, 2550602488), (14, 1457487136), (16, 1275301244), (28, 728743568), (32, 637650622), (49, 416424896), (56, 364371784), (64, 318825311), (98, 208212448), (112, 182185892), (131, 155761984), (196, 104106224), (224, 91092946), (262, 77880992), (392, 52053112), (448, 45546473), (524, 38940496), (784, 26026556), (917, 22251712), (1048, 19470248), (1568, 13013278), (1834, 11125856), (2096, 9735124), (3136, 6506639), (3668, 5562928), (4192, 4867562), (6419, 3178816), (7336, 2781464), (8384, 2433781), (12838, 1589408), (14672, 1390732), (25676, 794704), (29344, 695366), (49669, 410816), (51352, 397352), (58688, 347683), (99338, 205408), (102704, 198676)]