256043984

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:460

約数の個数: 80

約数和(自身を含む): 581808000

約数和(自身を除く): 325764016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 149, 229, 268, 298, 458, 469, 536, 596, 916, 938, 1043, 1072, 1192, 1603, 1832, 1876, 2086, 2384, 3206, 3664, 3752, 4172, 6412, 7504, 8344, 9983, 12824, 15343, 16688, 19966, 25648, 30686, 34121, 39932, 61372, 68242, 69881, 79864, 107401, 122744, 136484, 139762, 159728, 214802, 238847, 245488, 272968, 279524, 429604, 477694, 545936, 559048, 859208, 955388, 1118096, 1718416, 1910776, 2286107, 3821552, 4572214, 9144428, 16002749, 18288856, 32005498, 36577712, 64010996, 128021992, 256043984]

約数ペア:

[(1, 256043984), (2, 128021992), (4, 64010996), (7, 36577712), (8, 32005498), (14, 18288856), (16, 16002749), (28, 9144428), (56, 4572214), (67, 3821552), (112, 2286107), (134, 1910776), (149, 1718416), (229, 1118096), (268, 955388), (298, 859208), (458, 559048), (469, 545936), (536, 477694), (596, 429604), (916, 279524), (938, 272968), (1043, 245488), (1072, 238847), (1192, 214802), (1603, 159728), (1832, 139762), (1876, 136484), (2086, 122744), (2384, 107401), (3206, 79864), (3664, 69881), (3752, 68242), (4172, 61372), (6412, 39932), (7504, 34121), (8344, 30686), (9983, 25648), (12824, 19966), (15343, 16688)]