257394984

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4493}}^1$

素因数の和:4551

約数の個数: 128

約数和(自身を含む): 828334080

約数和(自身を除く): 570939096

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 31, 33, 42, 44, 56, 62, 66, 77, 84, 88, 93, 124, 132, 154, 168, 186, 217, 231, 248, 264, 308, 341, 372, 434, 462, 616, 651, 682, 744, 868, 924, 1023, 1302, 1364, 1736, 1848, 2046, 2387, 2604, 2728, 4092, 4493, 4774, 5208, 7161, 8184, 8986, 9548, 13479, 14322, 17972, 19096, 26958, 28644, 31451, 35944, 49423, 53916, 57288, 62902, 94353, 98846, 107832, 125804, 139283, 148269, 188706, 197692, 251608, 278566, 296538, 345961, 377412, 395384, 417849, 557132, 593076, 691922, 754824, 835698, 974981, 1037883, 1114264, 1186152, 1383844, 1532113, 1671396, 1949962, 2075766, 2767688, 2924943, 3064226, 3342792, 3899924, 4151532, 4596339, 5849886, 6128452, 7799848, 8303064, 9192678, 10724791, 11699772, 12256904, 18385356, 21449582, 23399544, 32174373, 36770712, 42899164, 64348746, 85798328, 128697492, 257394984]

約数ペア:

[(1, 257394984), (2, 128697492), (3, 85798328), (4, 64348746), (6, 42899164), (7, 36770712), (8, 32174373), (11, 23399544), (12, 21449582), (14, 18385356), (21, 12256904), (22, 11699772), (24, 10724791), (28, 9192678), (31, 8303064), (33, 7799848), (42, 6128452), (44, 5849886), (56, 4596339), (62, 4151532), (66, 3899924), (77, 3342792), (84, 3064226), (88, 2924943), (93, 2767688), (124, 2075766), (132, 1949962), (154, 1671396), (168, 1532113), (186, 1383844), (217, 1186152), (231, 1114264), (248, 1037883), (264, 974981), (308, 835698), (341, 754824), (372, 691922), (434, 593076), (462, 557132), (616, 417849), (651, 395384), (682, 377412), (744, 345961), (868, 296538), (924, 278566), (1023, 251608), (1302, 197692), (1364, 188706), (1736, 148269), (1848, 139283), (2046, 125804), (2387, 107832), (2604, 98846), (2728, 94353), (4092, 62902), (4493, 57288), (4774, 53916), (5208, 49423), (7161, 35944), (8184, 31451), (8986, 28644), (9548, 26958), (13479, 19096), (14322, 17972)]