1277123456

素因数分解:

$2^7\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1585

約数の個数: 128

約数和(自身を含む): 3125280000

約数和(自身を除く): 1848156544

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 64, 76, 98, 112, 128, 133, 152, 196, 224, 266, 304, 343, 392, 448, 532, 608, 686, 784, 896, 931, 1064, 1216, 1372, 1531, 1568, 1862, 2128, 2432, 2744, 3062, 3136, 3724, 4256, 5488, 6124, 6272, 6517, 7448, 8512, 10717, 10976, 12248, 13034, 14896, 17024, 21434, 21952, 24496, 26068, 29089, 29792, 42868, 43904, 48992, 52136, 58178, 59584, 75019, 85736, 97984, 104272, 116356, 119168, 150038, 171472, 195968, 203623, 208544, 232712, 300076, 342944, 407246, 417088, 465424, 525133, 600152, 685888, 814492, 834176, 930848, 1050266, 1200304, 1371776, 1425361, 1628984, 1861696, 2100532, 2400608, 2850722, 3257968, 3723392, 4201064, 4801216, 5701444, 6515936, 8402128, 9602432, 9977527, 11402888, 13031872, 16804256, 19955054, 22805776, 26063744, 33608512, 39910108, 45611552, 67217024, 79820216, 91223104, 159640432, 182446208, 319280864, 638561728, 1277123456]

約数ペア:

[(1, 1277123456), (2, 638561728), (4, 319280864), (7, 182446208), (8, 159640432), (14, 91223104), (16, 79820216), (19, 67217024), (28, 45611552), (32, 39910108), (38, 33608512), (49, 26063744), (56, 22805776), (64, 19955054), (76, 16804256), (98, 13031872), (112, 11402888), (128, 9977527), (133, 9602432), (152, 8402128), (196, 6515936), (224, 5701444), (266, 4801216), (304, 4201064), (343, 3723392), (392, 3257968), (448, 2850722), (532, 2400608), (608, 2100532), (686, 1861696), (784, 1628984), (896, 1425361), (931, 1371776), (1064, 1200304), (1216, 1050266), (1372, 930848), (1531, 834176), (1568, 814492), (1862, 685888), (2128, 600152), (2432, 525133), (2744, 465424), (3062, 417088), (3136, 407246), (3724, 342944), (4256, 300076), (5488, 232712), (6124, 208544), (6272, 203623), (6517, 195968), (7448, 171472), (8512, 150038), (10717, 119168), (10976, 116356), (12248, 104272), (13034, 97984), (14896, 85736), (17024, 75019), (21434, 59584), (21952, 58178), (24496, 52136), (26068, 48992), (29089, 43904), (29792, 42868)]